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Finding the Fourth Proportional to 94,558.80, 141,838.20 and 86,248.20

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Solution

The fourth proportional to 94,558.80, 141,838.20 and 86,248.20 is: 129,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,558.80 : 141,838.20 = 86,248.20 : x
  2. Step 2: Convert to fraction form
    94,558.80/141,838.20 = 86,248.20/x
  3. Step 3: Cross multiply
    94,558.80x = 141,838.20 × 86,248.20
  4. Step 4: Simplify right side
    94,558.80x = 12,233,289,441.24
  5. Step 5: Solve for x
    x = 12,233,289,441.24/94,558.80
  6. Step 6: Final answer
    x = 129,372.30

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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.