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Finding the Fourth Proportional to 457,154.60, 685,654.14 and 124,652.84

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Solution

The fourth proportional to 457,154.60, 685,654.14 and 124,652.84 is: 186,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,154.60 : 685,654.14 = 124,652.84 : x
  2. Step 2: Convert to fraction form
    457,154.60/685,654.14 = 124,652.84/x
  3. Step 3: Cross multiply
    457,154.60x = 685,654.14 × 124,652.84
  4. Step 4: Simplify right side
    457,154.60x = 85,468,735,808.76
  5. Step 5: Solve for x
    x = 85,468,735,808.76/457,154.60
  6. Step 6: Final answer
    x = 186,958.06

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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.