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Finding the Fourth Proportional to 103,357.45, 155,080.05 and 50,089.08

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Solution

The fourth proportional to 103,357.45, 155,080.05 and 50,089.08 is: 75,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,357.45 : 155,080.05 = 50,089.08 : x
  2. Step 2: Convert to fraction form
    103,357.45/155,080.05 = 50,089.08/x
  3. Step 3: Cross multiply
    103,357.45x = 155,080.05 × 50,089.08
  4. Step 4: Simplify right side
    103,357.45x = 7,767,816,547.73
  5. Step 5: Solve for x
    x = 7,767,816,547.73/103,357.45
  6. Step 6: Final answer
    x = 75,154.88

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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.