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Finding the Fourth Proportional to 125,044.32, 172,559.76 and 67,682.40

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Solution

The fourth proportional to 125,044.32, 172,559.76 and 67,682.40 is: 93,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,044.32 : 172,559.76 = 67,682.40 : x
  2. Step 2: Convert to fraction form
    125,044.32/172,559.76 = 67,682.40/x
  3. Step 3: Cross multiply
    125,044.32x = 172,559.76 × 67,682.40
  4. Step 4: Simplify right side
    125,044.32x = 11,679,258,700.22
  5. Step 5: Solve for x
    x = 11,679,258,700.22/125,044.32
  6. Step 6: Final answer
    x = 93,400.95

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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.