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Finding the Fourth Proportional to 497,221.20, 745,831.20 and 123,244.20

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Solution

The fourth proportional to 497,221.20, 745,831.20 and 123,244.20 is: 184,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,221.20 : 745,831.20 = 123,244.20 : x
  2. Step 2: Convert to fraction form
    497,221.20/745,831.20 = 123,244.20/x
  3. Step 3: Cross multiply
    497,221.20x = 745,831.20 × 123,244.20
  4. Step 4: Simplify right side
    497,221.20x = 91,919,369,579.04
  5. Step 5: Solve for x
    x = 91,919,369,579.04/497,221.20
  6. Step 6: Final answer
    x = 184,866.15

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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.