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Finding the Fourth Proportional to 84,868.98, 127,109.70 and 40,526.97

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Solution

The fourth proportional to 84,868.98, 127,109.70 and 40,526.97 is: 60,697.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.98 : 127,109.70 = 40,526.97 : x
  2. Step 2: Convert to fraction form
    84,868.98/127,109.70 = 40,526.97/x
  3. Step 3: Cross multiply
    84,868.98x = 127,109.70 × 40,526.97
  4. Step 4: Simplify right side
    84,868.98x = 5,151,370,998.61
  5. Step 5: Solve for x
    x = 5,151,370,998.61/84,868.98
  6. Step 6: Final answer
    x = 60,697.93

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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.