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Finding the Fourth Proportional to 119,720, 179,648.48 and 60,560.48

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Solution

The fourth proportional to 119,720, 179,648.48 and 60,560.48 is: 90,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,720 : 179,648.48 = 60,560.48 : x
  2. Step 2: Convert to fraction form
    119,720/179,648.48 = 60,560.48/x
  3. Step 3: Cross multiply
    119,720x = 179,648.48 × 60,560.48
  4. Step 4: Simplify right side
    119,720x = 10,879,598,180.07
  5. Step 5: Solve for x
    x = 10,879,598,180.07/119,720
  6. Step 6: Final answer
    x = 90,875.36

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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.