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Finding the Fourth Proportional to 83,276.60, 124,914.90 and 62,281.40

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Solution

The fourth proportional to 83,276.60, 124,914.90 and 62,281.40 is: 93,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,276.60 : 124,914.90 = 62,281.40 : x
  2. Step 2: Convert to fraction form
    83,276.60/124,914.90 = 62,281.40/x
  3. Step 3: Cross multiply
    83,276.60x = 124,914.90 × 62,281.40
  4. Step 4: Simplify right side
    83,276.60x = 7,779,874,852.86
  5. Step 5: Solve for x
    x = 7,779,874,852.86/83,276.60
  6. Step 6: Final answer
    x = 93,422.10

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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.