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Finding the Fourth Proportional to 102,707.80, 154,061.70 and 96,098.20

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Solution

The fourth proportional to 102,707.80, 154,061.70 and 96,098.20 is: 144,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,707.80 : 154,061.70 = 96,098.20 : x
  2. Step 2: Convert to fraction form
    102,707.80/154,061.70 = 96,098.20/x
  3. Step 3: Cross multiply
    102,707.80x = 154,061.70 × 96,098.20
  4. Step 4: Simplify right side
    102,707.80x = 14,805,052,058.94
  5. Step 5: Solve for x
    x = 14,805,052,058.94/102,707.80
  6. Step 6: Final answer
    x = 144,147.30

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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.