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Finding the Fourth Proportional to 110,611,616.80, 165,917,425.20 and 103,533,728.80

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Solution

The fourth proportional to 110,611,616.80, 165,917,425.20 and 103,533,728.80 is: 155,300,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,611,616.80 : 165,917,425.20 = 103,533,728.80 : x
  2. Step 2: Convert to fraction form
    110,611,616.80/165,917,425.20 = 103,533,728.80/x
  3. Step 3: Cross multiply
    110,611,616.80x = 165,917,425.20 × 103,533,728.80
  4. Step 4: Simplify right side
    110,611,616.80x = 17,178,049,703,851,084
  5. Step 5: Solve for x
    x = 17,178,049,703,851,084/110,611,616.80
  6. Step 6: Final answer
    x = 155,300,593.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.