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Finding the Fourth Proportional to 82,956.40, 124,492.92 and 75,024.88

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Solution

The fourth proportional to 82,956.40, 124,492.92 and 75,024.88 is: 112,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,956.40 : 124,492.92 = 75,024.88 : x
  2. Step 2: Convert to fraction form
    82,956.40/124,492.92 = 75,024.88/x
  3. Step 3: Cross multiply
    82,956.40x = 124,492.92 × 75,024.88
  4. Step 4: Simplify right side
    82,956.40x = 9,340,066,383.85
  5. Step 5: Solve for x
    x = 9,340,066,383.85/82,956.40
  6. Step 6: Final answer
    x = 112,590.06

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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.