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Finding the Fourth Proportional to 95,978.13, 132,378.40 and 70,476.49

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Solution

The fourth proportional to 95,978.13, 132,378.40 and 70,476.49 is: 97,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,978.13 : 132,378.40 = 70,476.49 : x
  2. Step 2: Convert to fraction form
    95,978.13/132,378.40 = 70,476.49/x
  3. Step 3: Cross multiply
    95,978.13x = 132,378.40 × 70,476.49
  4. Step 4: Simplify right side
    95,978.13x = 9,329,564,983.82
  5. Step 5: Solve for x
    x = 9,329,564,983.82/95,978.13
  6. Step 6: Final answer
    x = 97,205.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.