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Finding the Fourth Proportional to 125,097.67, 187,665.93 and 42,011.11

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Solution

The fourth proportional to 125,097.67, 187,665.93 and 42,011.11 is: 63,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,097.67 : 187,665.93 = 42,011.11 : x
  2. Step 2: Convert to fraction form
    125,097.67/187,665.93 = 42,011.11/x
  3. Step 3: Cross multiply
    125,097.67x = 187,665.93 × 42,011.11
  4. Step 4: Simplify right side
    125,097.67x = 7,884,053,559.32
  5. Step 5: Solve for x
    x = 7,884,053,559.32/125,097.67
  6. Step 6: Final answer
    x = 63,023.19

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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.