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Finding the Fourth Proportional to 84,765.84, 127,225.17 and 62,305.08

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Solution

The fourth proportional to 84,765.84, 127,225.17 and 62,305.08 is: 93,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.84 : 127,225.17 = 62,305.08 : x
  2. Step 2: Convert to fraction form
    84,765.84/127,225.17 = 62,305.08/x
  3. Step 3: Cross multiply
    84,765.84x = 127,225.17 × 62,305.08
  4. Step 4: Simplify right side
    84,765.84x = 7,926,774,394.86
  5. Step 5: Solve for x
    x = 7,926,774,394.86/84,765.84
  6. Step 6: Final answer
    x = 93,513.78

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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.