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Finding the Fourth Proportional to 110,634.76, 152,687.81 and 67,639.48

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Solution

The fourth proportional to 110,634.76, 152,687.81 and 67,639.48 is: 93,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,634.76 : 152,687.81 = 67,639.48 : x
  2. Step 2: Convert to fraction form
    110,634.76/152,687.81 = 67,639.48/x
  3. Step 3: Cross multiply
    110,634.76x = 152,687.81 × 67,639.48
  4. Step 4: Simplify right side
    110,634.76x = 10,327,724,070.74
  5. Step 5: Solve for x
    x = 10,327,724,070.74/110,634.76
  6. Step 6: Final answer
    x = 93,349.72

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1.5x scale

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.