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Finding the Fourth Proportional to 98,751.80, 147,695.70 and 88,297.40

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Solution

The fourth proportional to 98,751.80, 147,695.70 and 88,297.40 is: 132,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,751.80 : 147,695.70 = 88,297.40 : x
  2. Step 2: Convert to fraction form
    98,751.80/147,695.70 = 88,297.40/x
  3. Step 3: Cross multiply
    98,751.80x = 147,695.70 × 88,297.40
  4. Step 4: Simplify right side
    98,751.80x = 13,041,146,301.18
  5. Step 5: Solve for x
    x = 13,041,146,301.18/98,751.80
  6. Step 6: Final answer
    x = 132,059.83

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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.