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Finding the Fourth Proportional to 145,957.56, 218,936.34 and 112,726.11

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Solution

The fourth proportional to 145,957.56, 218,936.34 and 112,726.11 is: 169,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,957.56 : 218,936.34 = 112,726.11 : x
  2. Step 2: Convert to fraction form
    145,957.56/218,936.34 = 112,726.11/x
  3. Step 3: Cross multiply
    145,957.56x = 218,936.34 × 112,726.11
  4. Step 4: Simplify right side
    145,957.56x = 24,679,841,945.84
  5. Step 5: Solve for x
    x = 24,679,841,945.84/145,957.56
  6. Step 6: Final answer
    x = 169,089.17

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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.