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Finding the Fourth Proportional to 127,843.92, 191,853.36 and 65,558.16

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Solution

The fourth proportional to 127,843.92, 191,853.36 and 65,558.16 is: 98,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.92 : 191,853.36 = 65,558.16 : x
  2. Step 2: Convert to fraction form
    127,843.92/191,853.36 = 65,558.16/x
  3. Step 3: Cross multiply
    127,843.92x = 191,853.36 × 65,558.16
  4. Step 4: Simplify right side
    127,843.92x = 12,577,553,271.42
  5. Step 5: Solve for x
    x = 12,577,553,271.42/127,843.92
  6. Step 6: Final answer
    x = 98,382.10

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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.