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Finding the Fourth Proportional to 308,085.48, 462,167.18 and 105,721.02

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Solution

The fourth proportional to 308,085.48, 462,167.18 and 105,721.02 is: 158,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,085.48 : 462,167.18 = 105,721.02 : x
  2. Step 2: Convert to fraction form
    308,085.48/462,167.18 = 105,721.02/x
  3. Step 3: Cross multiply
    308,085.48x = 462,167.18 × 105,721.02
  4. Step 4: Simplify right side
    308,085.48x = 48,860,785,680.12
  5. Step 5: Solve for x
    x = 48,860,785,680.12/308,085.48
  6. Step 6: Final answer
    x = 158,594.90

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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.