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Finding the Fourth Proportional to 83,692.32, 125,559.72 and 38,746.08

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Solution

The fourth proportional to 83,692.32, 125,559.72 and 38,746.08 is: 58,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,692.32 : 125,559.72 = 38,746.08 : x
  2. Step 2: Convert to fraction form
    83,692.32/125,559.72 = 38,746.08/x
  3. Step 3: Cross multiply
    83,692.32x = 125,559.72 × 38,746.08
  4. Step 4: Simplify right side
    83,692.32x = 4,864,946,955.90
  5. Step 5: Solve for x
    x = 4,864,946,955.90/83,692.32
  6. Step 6: Final answer
    x = 58,128.95

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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.