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Finding the Fourth Proportional to 118,297.71, 163,250.67 and 75,856.14

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Solution

The fourth proportional to 118,297.71, 163,250.67 and 75,856.14 is: 104,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,297.71 : 163,250.67 = 75,856.14 : x
  2. Step 2: Convert to fraction form
    118,297.71/163,250.67 = 75,856.14/x
  3. Step 3: Cross multiply
    118,297.71x = 163,250.67 × 75,856.14
  4. Step 4: Simplify right side
    118,297.71x = 12,383,565,678.61
  5. Step 5: Solve for x
    x = 12,383,565,678.61/118,297.71
  6. Step 6: Final answer
    x = 104,681.36

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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.