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Finding the Fourth Proportional to 408,660.30, 613,013.51 and 124,360.13

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Solution

The fourth proportional to 408,660.30, 613,013.51 and 124,360.13 is: 186,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,660.30 : 613,013.51 = 124,360.13 : x
  2. Step 2: Convert to fraction form
    408,660.30/613,013.51 = 124,360.13/x
  3. Step 3: Cross multiply
    408,660.30x = 613,013.51 × 124,360.13
  4. Step 4: Simplify right side
    408,660.30x = 76,234,441,638.79
  5. Step 5: Solve for x
    x = 76,234,441,638.79/408,660.30
  6. Step 6: Final answer
    x = 186,547.22

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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.