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Finding the Fourth Proportional to 104,952.10, 157,428.15 and 100,869.70

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Solution

The fourth proportional to 104,952.10, 157,428.15 and 100,869.70 is: 151,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,952.10 : 157,428.15 = 100,869.70 : x
  2. Step 2: Convert to fraction form
    104,952.10/157,428.15 = 100,869.70/x
  3. Step 3: Cross multiply
    104,952.10x = 157,428.15 × 100,869.70
  4. Step 4: Simplify right side
    104,952.10x = 15,879,730,262.06
  5. Step 5: Solve for x
    x = 15,879,730,262.06/104,952.10
  6. Step 6: Final answer
    x = 151,304.55

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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.