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Finding the Fourth Proportional to 187,076.65, 258,165.72 and 101,035.66

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Solution

The fourth proportional to 187,076.65, 258,165.72 and 101,035.66 is: 139,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,076.65 : 258,165.72 = 101,035.66 : x
  2. Step 2: Convert to fraction form
    187,076.65/258,165.72 = 101,035.66/x
  3. Step 3: Cross multiply
    187,076.65x = 258,165.72 × 101,035.66
  4. Step 4: Simplify right side
    187,076.65x = 26,083,943,909.58
  5. Step 5: Solve for x
    x = 26,083,943,909.58/187,076.65
  6. Step 6: Final answer
    x = 139,429.18

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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.