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Finding the Fourth Proportional to 488,115.03, 732,097.31 and 133,157.91

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Solution

The fourth proportional to 488,115.03, 732,097.31 and 133,157.91 is: 199,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,115.03 : 732,097.31 = 133,157.91 : x
  2. Step 2: Convert to fraction form
    488,115.03/732,097.31 = 133,157.91/x
  3. Step 3: Cross multiply
    488,115.03x = 732,097.31 × 133,157.91
  4. Step 4: Simplify right side
    488,115.03x = 97,484,547,050.43
  5. Step 5: Solve for x
    x = 97,484,547,050.43/488,115.03
  6. Step 6: Final answer
    x = 199,716.34

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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.