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Finding the Fourth Proportional to 100,988.96, 151,487.28 and 37,802.42

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Solution

The fourth proportional to 100,988.96, 151,487.28 and 37,802.42 is: 56,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,988.96 : 151,487.28 = 37,802.42 : x
  2. Step 2: Convert to fraction form
    100,988.96/151,487.28 = 37,802.42/x
  3. Step 3: Cross multiply
    100,988.96x = 151,487.28 × 37,802.42
  4. Step 4: Simplify right side
    100,988.96x = 5,726,585,025.78
  5. Step 5: Solve for x
    x = 5,726,585,025.78/100,988.96
  6. Step 6: Final answer
    x = 56,705.06

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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.