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Finding the Fourth Proportional to 127,469.58, 191,202.75 and 57,299.28

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Solution

The fourth proportional to 127,469.58, 191,202.75 and 57,299.28 is: 85,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,469.58 : 191,202.75 = 57,299.28 : x
  2. Step 2: Convert to fraction form
    127,469.58/191,202.75 = 57,299.28/x
  3. Step 3: Cross multiply
    127,469.58x = 191,202.75 × 57,299.28
  4. Step 4: Simplify right side
    127,469.58x = 10,955,779,909.02
  5. Step 5: Solve for x
    x = 10,955,779,909.02/127,469.58
  6. Step 6: Final answer
    x = 85,948.19

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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.