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Finding the Fourth Proportional to 364,812.30, 547,218.45 and 98,613.90

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Solution

The fourth proportional to 364,812.30, 547,218.45 and 98,613.90 is: 147,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,812.30 : 547,218.45 = 98,613.90 : x
  2. Step 2: Convert to fraction form
    364,812.30/547,218.45 = 98,613.90/x
  3. Step 3: Cross multiply
    364,812.30x = 547,218.45 × 98,613.90
  4. Step 4: Simplify right side
    364,812.30x = 53,963,345,506.46
  5. Step 5: Solve for x
    x = 53,963,345,506.46/364,812.30
  6. Step 6: Final answer
    x = 147,920.85

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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.