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Finding the Fourth Proportional to 113,956.92, 170,956.04 and 57,060.50

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Solution

The fourth proportional to 113,956.92, 170,956.04 and 57,060.50 is: 85,601.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,956.92 : 170,956.04 = 57,060.50 : x
  2. Step 2: Convert to fraction form
    113,956.92/170,956.04 = 57,060.50/x
  3. Step 3: Cross multiply
    113,956.92x = 170,956.04 × 57,060.50
  4. Step 4: Simplify right side
    113,956.92x = 9,754,835,980.34
  5. Step 5: Solve for x
    x = 9,754,835,980.34/113,956.92
  6. Step 6: Final answer
    x = 85,601.08

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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.