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Finding the Fourth Proportional to 110,534.70, 165,802.05 and 90,851.70

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Solution

The fourth proportional to 110,534.70, 165,802.05 and 90,851.70 is: 136,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,534.70 : 165,802.05 = 90,851.70 : x
  2. Step 2: Convert to fraction form
    110,534.70/165,802.05 = 90,851.70/x
  3. Step 3: Cross multiply
    110,534.70x = 165,802.05 × 90,851.70
  4. Step 4: Simplify right side
    110,534.70x = 15,063,398,105.99
  5. Step 5: Solve for x
    x = 15,063,398,105.99/110,534.70
  6. Step 6: Final answer
    x = 136,277.55

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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.