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Finding the Fourth Proportional to 418,601.04, 627,901.68 and 123,113.04

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Solution

The fourth proportional to 418,601.04, 627,901.68 and 123,113.04 is: 184,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,601.04 : 627,901.68 = 123,113.04 : x
  2. Step 2: Convert to fraction form
    418,601.04/627,901.68 = 123,113.04/x
  3. Step 3: Cross multiply
    418,601.04x = 627,901.68 × 123,113.04
  4. Step 4: Simplify right side
    418,601.04x = 77,302,884,645.91
  5. Step 5: Solve for x
    x = 77,302,884,645.91/418,601.04
  6. Step 6: Final answer
    x = 184,669.60

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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.