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Finding the Fourth Proportional to 125,065.53, 172,590.24 and 67,704.57

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Solution

The fourth proportional to 125,065.53, 172,590.24 and 67,704.57 is: 93,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,065.53 : 172,590.24 = 67,704.57 : x
  2. Step 2: Convert to fraction form
    125,065.53/172,590.24 = 67,704.57/x
  3. Step 3: Cross multiply
    125,065.53x = 172,590.24 × 67,704.57
  4. Step 4: Simplify right side
    125,065.53x = 11,685,147,985.40
  5. Step 5: Solve for x
    x = 11,685,147,985.40/125,065.53
  6. Step 6: Final answer
    x = 93,432.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.