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Finding the Fourth Proportional to 172,677.78, 238,312.40 and 101,053.53

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Solution

The fourth proportional to 172,677.78, 238,312.40 and 101,053.53 is: 139,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,677.78 : 238,312.40 = 101,053.53 : x
  2. Step 2: Convert to fraction form
    172,677.78/238,312.40 = 101,053.53/x
  3. Step 3: Cross multiply
    172,677.78x = 238,312.40 × 101,053.53
  4. Step 4: Simplify right side
    172,677.78x = 24,082,309,262.77
  5. Step 5: Solve for x
    x = 24,082,309,262.77/172,677.78
  6. Step 6: Final answer
    x = 139,463.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.