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Finding the Fourth Proportional to 415,862.60, 623,793.90 and 149,923.40

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Solution

The fourth proportional to 415,862.60, 623,793.90 and 149,923.40 is: 224,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,862.60 : 623,793.90 = 149,923.40 : x
  2. Step 2: Convert to fraction form
    415,862.60/623,793.90 = 149,923.40/x
  3. Step 3: Cross multiply
    415,862.60x = 623,793.90 × 149,923.40
  4. Step 4: Simplify right side
    415,862.60x = 93,521,302,387.26
  5. Step 5: Solve for x
    x = 93,521,302,387.26/415,862.60
  6. Step 6: Final answer
    x = 224,885.10

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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.