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Finding the Fourth Proportional to 442,157.15, 663,375.93 and 157,841.45

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Solution

The fourth proportional to 442,157.15, 663,375.93 and 157,841.45 is: 236,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,157.15 : 663,375.93 = 157,841.45 : x
  2. Step 2: Convert to fraction form
    442,157.15/663,375.93 = 157,841.45/x
  3. Step 3: Cross multiply
    442,157.15x = 663,375.93 × 157,841.45
  4. Step 4: Simplify right side
    442,157.15x = 104,708,217,265.17
  5. Step 5: Solve for x
    x = 104,708,217,265.17/442,157.15
  6. Step 6: Final answer
    x = 236,812.22

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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.