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Finding the Fourth Proportional to 73,277.20, 109,915.80 and 62,779.60

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Solution

The fourth proportional to 73,277.20, 109,915.80 and 62,779.60 is: 94,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,277.20 : 109,915.80 = 62,779.60 : x
  2. Step 2: Convert to fraction form
    73,277.20/109,915.80 = 62,779.60/x
  3. Step 3: Cross multiply
    73,277.20x = 109,915.80 × 62,779.60
  4. Step 4: Simplify right side
    73,277.20x = 6,900,469,957.68
  5. Step 5: Solve for x
    x = 6,900,469,957.68/73,277.20
  6. Step 6: Final answer
    x = 94,169.40

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1.5x scale

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.