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Finding the Fourth Proportional to 187,608.95, 258,897.70 and 102,726.01

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Solution

The fourth proportional to 187,608.95, 258,897.70 and 102,726.01 is: 141,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,608.95 : 258,897.70 = 102,726.01 : x
  2. Step 2: Convert to fraction form
    187,608.95/258,897.70 = 102,726.01/x
  3. Step 3: Cross multiply
    187,608.95x = 258,897.70 × 102,726.01
  4. Step 4: Simplify right side
    187,608.95x = 26,595,527,719.18
  5. Step 5: Solve for x
    x = 26,595,527,719.18/187,608.95
  6. Step 6: Final answer
    x = 141,760.44

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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.