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Finding the Fourth Proportional to 127,969.50, 176,502.70 and 93,967.32

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Solution

The fourth proportional to 127,969.50, 176,502.70 and 93,967.32 is: 129,604.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,969.50 : 176,502.70 = 93,967.32 : x
  2. Step 2: Convert to fraction form
    127,969.50/176,502.70 = 93,967.32/x
  3. Step 3: Cross multiply
    127,969.50x = 176,502.70 × 93,967.32
  4. Step 4: Simplify right side
    127,969.50x = 16,585,485,691.76
  5. Step 5: Solve for x
    x = 16,585,485,691.76/127,969.50
  6. Step 6: Final answer
    x = 129,604.99

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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.