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Finding the Fourth Proportional to 98,012.97, 147,001.88 and 25,966.37

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Solution

The fourth proportional to 98,012.97, 147,001.88 and 25,966.37 is: 38,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,012.97 : 147,001.88 = 25,966.37 : x
  2. Step 2: Convert to fraction form
    98,012.97/147,001.88 = 25,966.37/x
  3. Step 3: Cross multiply
    98,012.97x = 147,001.88 × 25,966.37
  4. Step 4: Simplify right side
    98,012.97x = 3,817,104,341.93
  5. Step 5: Solve for x
    x = 3,817,104,341.93/98,012.97
  6. Step 6: Final answer
    x = 38,944.89

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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.