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Finding the Fourth Proportional to 145,649.07, 218,474.12 and 40,468.04

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Solution

The fourth proportional to 145,649.07, 218,474.12 and 40,468.04 is: 60,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,649.07 : 218,474.12 = 40,468.04 : x
  2. Step 2: Convert to fraction form
    145,649.07/218,474.12 = 40,468.04/x
  3. Step 3: Cross multiply
    145,649.07x = 218,474.12 × 40,468.04
  4. Step 4: Simplify right side
    145,649.07x = 8,841,220,233.80
  5. Step 5: Solve for x
    x = 8,841,220,233.80/145,649.07
  6. Step 6: Final answer
    x = 60,702.21

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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.