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Finding the Fourth Proportional to 98,426.92, 147,663.90 and 31,867.12

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Solution

The fourth proportional to 98,426.92, 147,663.90 and 31,867.12 is: 47,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,426.92 : 147,663.90 = 31,867.12 : x
  2. Step 2: Convert to fraction form
    98,426.92/147,663.90 = 31,867.12/x
  3. Step 3: Cross multiply
    98,426.92x = 147,663.90 × 31,867.12
  4. Step 4: Simplify right side
    98,426.92x = 4,705,623,510.46
  5. Step 5: Solve for x
    x = 4,705,623,510.46/98,426.92
  6. Step 6: Final answer
    x = 47,808.30

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1.5x scale

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.