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Finding the Fourth Proportional to 243,391.70, 364,978.20 and 93,582.20

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Solution

The fourth proportional to 243,391.70, 364,978.20 and 93,582.20 is: 140,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,391.70 : 364,978.20 = 93,582.20 : x
  2. Step 2: Convert to fraction form
    243,391.70/364,978.20 = 93,582.20/x
  3. Step 3: Cross multiply
    243,391.70x = 364,978.20 × 93,582.20
  4. Step 4: Simplify right side
    243,391.70x = 34,155,462,908.04
  5. Step 5: Solve for x
    x = 34,155,462,908.04/243,391.70
  6. Step 6: Final answer
    x = 140,331.26

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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.