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Finding the Fourth Proportional to 66,060.62, 99,048.78 and 43,545.32

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Solution

The fourth proportional to 66,060.62, 99,048.78 and 43,545.32 is: 65,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,060.62 : 99,048.78 = 43,545.32 : x
  2. Step 2: Convert to fraction form
    66,060.62/99,048.78 = 43,545.32/x
  3. Step 3: Cross multiply
    66,060.62x = 99,048.78 × 43,545.32
  4. Step 4: Simplify right side
    66,060.62x = 4,313,110,325.47
  5. Step 5: Solve for x
    x = 4,313,110,325.47/66,060.62
  6. Step 6: Final answer
    x = 65,290.19

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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.