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Finding the Fourth Proportional to 130,371.40, 195,848.70 and 125,057.80

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Solution

The fourth proportional to 130,371.40, 195,848.70 and 125,057.80 is: 187,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,371.40 : 195,848.70 = 125,057.80 : x
  2. Step 2: Convert to fraction form
    130,371.40/195,848.70 = 125,057.80/x
  3. Step 3: Cross multiply
    130,371.40x = 195,848.70 × 125,057.80
  4. Step 4: Simplify right side
    130,371.40x = 24,492,407,554.86
  5. Step 5: Solve for x
    x = 24,492,407,554.86/130,371.40
  6. Step 6: Final answer
    x = 187,866.42

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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.