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Finding the Fourth Proportional to 172,266.66, 258,094.62 and 147,053.88

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Solution

The fourth proportional to 172,266.66, 258,094.62 and 147,053.88 is: 220,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,266.66 : 258,094.62 = 147,053.88 : x
  2. Step 2: Convert to fraction form
    172,266.66/258,094.62 = 147,053.88/x
  3. Step 3: Cross multiply
    172,266.66x = 258,094.62 × 147,053.88
  4. Step 4: Simplify right side
    172,266.66x = 37,953,815,278.13
  5. Step 5: Solve for x
    x = 37,953,815,278.13/172,266.66
  6. Step 6: Final answer
    x = 220,320.14

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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.