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Finding the Fourth Proportional to 94,032.70, 129,692.56 and 65,351.78

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Solution

The fourth proportional to 94,032.70, 129,692.56 and 65,351.78 is: 90,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,032.70 : 129,692.56 = 65,351.78 : x
  2. Step 2: Convert to fraction form
    94,032.70/129,692.56 = 65,351.78/x
  3. Step 3: Cross multiply
    94,032.70x = 129,692.56 × 65,351.78
  4. Step 4: Simplify right side
    94,032.70x = 8,475,639,648.76
  5. Step 5: Solve for x
    x = 8,475,639,648.76/94,032.70
  6. Step 6: Final answer
    x = 90,135.02

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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.