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Finding the Fourth Proportional to 88,318.92, 132,478.38 and 51,357

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Solution

The fourth proportional to 88,318.92, 132,478.38 and 51,357 is: 77,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,318.92 : 132,478.38 = 51,357 : x
  2. Step 2: Convert to fraction form
    88,318.92/132,478.38 = 51,357/x
  3. Step 3: Cross multiply
    88,318.92x = 132,478.38 × 51,357
  4. Step 4: Simplify right side
    88,318.92x = 6,803,692,161.66
  5. Step 5: Solve for x
    x = 6,803,692,161.66/88,318.92
  6. Step 6: Final answer
    x = 77,035.50

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1.5x scale

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.