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Finding the Fourth Proportional to 145,752.48, 218,643.17 and 40,571.42

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Solution

The fourth proportional to 145,752.48, 218,643.17 and 40,571.42 is: 60,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,752.48 : 218,643.17 = 40,571.42 : x
  2. Step 2: Convert to fraction form
    145,752.48/218,643.17 = 40,571.42/x
  3. Step 3: Cross multiply
    145,752.48x = 218,643.17 × 40,571.42
  4. Step 4: Simplify right side
    145,752.48x = 8,870,662,584.13
  5. Step 5: Solve for x
    x = 8,870,662,584.13/145,752.48
  6. Step 6: Final answer
    x = 60,861.14

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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.