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Finding the Fourth Proportional to 144,147.98, 216,242.63 and 44,316.55

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Solution

The fourth proportional to 144,147.98, 216,242.63 and 44,316.55 is: 66,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,147.98 : 216,242.63 = 44,316.55 : x
  2. Step 2: Convert to fraction form
    144,147.98/216,242.63 = 44,316.55/x
  3. Step 3: Cross multiply
    144,147.98x = 216,242.63 × 44,316.55
  4. Step 4: Simplify right side
    144,147.98x = 9,583,126,894.71
  5. Step 5: Solve for x
    x = 9,583,126,894.71/144,147.98
  6. Step 6: Final answer
    x = 66,481.18

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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.