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Finding the Fourth Proportional to 141,952.72, 212,980.08 and 60,865.84

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Solution

The fourth proportional to 141,952.72, 212,980.08 and 60,865.84 is: 91,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,952.72 : 212,980.08 = 60,865.84 : x
  2. Step 2: Convert to fraction form
    141,952.72/212,980.08 = 60,865.84/x
  3. Step 3: Cross multiply
    141,952.72x = 212,980.08 × 60,865.84
  4. Step 4: Simplify right side
    141,952.72x = 12,963,211,472.47
  5. Step 5: Solve for x
    x = 12,963,211,472.47/141,952.72
  6. Step 6: Final answer
    x = 91,320.63

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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.