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Finding the Fourth Proportional to 98,363.70, 147,545.55 and 74,744.10

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Solution

The fourth proportional to 98,363.70, 147,545.55 and 74,744.10 is: 112,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,363.70 : 147,545.55 = 74,744.10 : x
  2. Step 2: Convert to fraction form
    98,363.70/147,545.55 = 74,744.10/x
  3. Step 3: Cross multiply
    98,363.70x = 147,545.55 × 74,744.10
  4. Step 4: Simplify right side
    98,363.70x = 11,028,159,343.76
  5. Step 5: Solve for x
    x = 11,028,159,343.76/98,363.70
  6. Step 6: Final answer
    x = 112,116.15

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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.