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Finding the Fourth Proportional to 127,960.32, 191,963.16 and 61,520.88

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Solution

The fourth proportional to 127,960.32, 191,963.16 and 61,520.88 is: 92,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.32 : 191,963.16 = 61,520.88 : x
  2. Step 2: Convert to fraction form
    127,960.32/191,963.16 = 61,520.88/x
  3. Step 3: Cross multiply
    127,960.32x = 191,963.16 × 61,520.88
  4. Step 4: Simplify right side
    127,960.32x = 11,809,742,530.78
  5. Step 5: Solve for x
    x = 11,809,742,530.78/127,960.32
  6. Step 6: Final answer
    x = 92,292.22

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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.