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Finding the Fourth Proportional to 453,632.97, 680,547.84 and 138,081.66

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Solution

The fourth proportional to 453,632.97, 680,547.84 and 138,081.66 is: 207,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,632.97 : 680,547.84 = 138,081.66 : x
  2. Step 2: Convert to fraction form
    453,632.97/680,547.84 = 138,081.66/x
  3. Step 3: Cross multiply
    453,632.97x = 680,547.84 × 138,081.66
  4. Step 4: Simplify right side
    453,632.97x = 93,971,175,456.61
  5. Step 5: Solve for x
    x = 93,971,175,456.61/453,632.97
  6. Step 6: Final answer
    x = 207,152.44

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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.