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Finding the Fourth Proportional to 86,712.92, 119,663.80 and 50,902.92

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Solution

The fourth proportional to 86,712.92, 119,663.80 and 50,902.92 is: 70,246.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,712.92 : 119,663.80 = 50,902.92 : x
  2. Step 2: Convert to fraction form
    86,712.92/119,663.80 = 50,902.92/x
  3. Step 3: Cross multiply
    86,712.92x = 119,663.80 × 50,902.92
  4. Step 4: Simplify right side
    86,712.92x = 6,091,236,838.30
  5. Step 5: Solve for x
    x = 6,091,236,838.30/86,712.92
  6. Step 6: Final answer
    x = 70,246.01

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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.