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Finding the Fourth Proportional to 127,202.56, 190,807.90 and 63,988.13

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Solution

The fourth proportional to 127,202.56, 190,807.90 and 63,988.13 is: 95,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,202.56 : 190,807.90 = 63,988.13 : x
  2. Step 2: Convert to fraction form
    127,202.56/190,807.90 = 63,988.13/x
  3. Step 3: Cross multiply
    127,202.56x = 190,807.90 × 63,988.13
  4. Step 4: Simplify right side
    127,202.56x = 12,209,441,027.28
  5. Step 5: Solve for x
    x = 12,209,441,027.28/127,202.56
  6. Step 6: Final answer
    x = 95,984.24

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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.