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Finding the Fourth Proportional to 98,624.80, 147,937.20 and 68,444.20

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Solution

The fourth proportional to 98,624.80, 147,937.20 and 68,444.20 is: 102,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,624.80 : 147,937.20 = 68,444.20 : x
  2. Step 2: Convert to fraction form
    98,624.80/147,937.20 = 68,444.20/x
  3. Step 3: Cross multiply
    98,624.80x = 147,937.20 × 68,444.20
  4. Step 4: Simplify right side
    98,624.80x = 10,125,443,304.24
  5. Step 5: Solve for x
    x = 10,125,443,304.24/98,624.80
  6. Step 6: Final answer
    x = 102,666.30

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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.