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Finding the Fourth Proportional to 547,091.66, 820,678.98 and 147,726.62

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Solution

The fourth proportional to 547,091.66, 820,678.98 and 147,726.62 is: 221,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,091.66 : 820,678.98 = 147,726.62 : x
  2. Step 2: Convert to fraction form
    547,091.66/820,678.98 = 147,726.62/x
  3. Step 3: Cross multiply
    547,091.66x = 820,678.98 × 147,726.62
  4. Step 4: Simplify right side
    547,091.66x = 121,236,131,820.45
  5. Step 5: Solve for x
    x = 121,236,131,820.45/547,091.66
  6. Step 6: Final answer
    x = 221,601.13

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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.