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Finding the Fourth Proportional to 127,532.60, 191,371.80 and 48,703.40

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Solution

The fourth proportional to 127,532.60, 191,371.80 and 48,703.40 is: 73,082.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,532.60 : 191,371.80 = 48,703.40 : x
  2. Step 2: Convert to fraction form
    127,532.60/191,371.80 = 48,703.40/x
  3. Step 3: Cross multiply
    127,532.60x = 191,371.80 × 48,703.40
  4. Step 4: Simplify right side
    127,532.60x = 9,320,457,324.12
  5. Step 5: Solve for x
    x = 9,320,457,324.12/127,532.60
  6. Step 6: Final answer
    x = 73,082.94

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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.