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Finding the Fourth Proportional to 127,795.92, 176,342.04 and 71,199.60

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Solution

The fourth proportional to 127,795.92, 176,342.04 and 71,199.60 is: 98,246.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,795.92 : 176,342.04 = 71,199.60 : x
  2. Step 2: Convert to fraction form
    127,795.92/176,342.04 = 71,199.60/x
  3. Step 3: Cross multiply
    127,795.92x = 176,342.04 × 71,199.60
  4. Step 4: Simplify right side
    127,795.92x = 12,555,482,711.18
  5. Step 5: Solve for x
    x = 12,555,482,711.18/127,795.92
  6. Step 6: Final answer
    x = 98,246.35

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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.