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Finding the Fourth Proportional to 88,313.70, 132,470.55 and 68,606.40

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Solution

The fourth proportional to 88,313.70, 132,470.55 and 68,606.40 is: 102,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,313.70 : 132,470.55 = 68,606.40 : x
  2. Step 2: Convert to fraction form
    88,313.70/132,470.55 = 68,606.40/x
  3. Step 3: Cross multiply
    88,313.70x = 132,470.55 × 68,606.40
  4. Step 4: Simplify right side
    88,313.70x = 9,088,327,541.52
  5. Step 5: Solve for x
    x = 9,088,327,541.52/88,313.70
  6. Step 6: Final answer
    x = 102,909.60

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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.