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Finding the Fourth Proportional to 482,802.80, 724,200.60 and 145,842.80

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Solution

The fourth proportional to 482,802.80, 724,200.60 and 145,842.80 is: 218,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,802.80 : 724,200.60 = 145,842.80 : x
  2. Step 2: Convert to fraction form
    482,802.80/724,200.60 = 145,842.80/x
  3. Step 3: Cross multiply
    482,802.80x = 724,200.60 × 145,842.80
  4. Step 4: Simplify right side
    482,802.80x = 105,619,443,265.68
  5. Step 5: Solve for x
    x = 105,619,443,265.68/482,802.80
  6. Step 6: Final answer
    x = 218,763.11

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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.