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Finding the Fourth Proportional to 145,940.08, 218,932.64 and 61,700.52

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Solution

The fourth proportional to 145,940.08, 218,932.64 and 61,700.52 is: 92,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,940.08 : 218,932.64 = 61,700.52 : x
  2. Step 2: Convert to fraction form
    145,940.08/218,932.64 = 61,700.52/x
  3. Step 3: Cross multiply
    145,940.08x = 218,932.64 × 61,700.52
  4. Step 4: Simplify right side
    145,940.08x = 13,508,256,792.56
  5. Step 5: Solve for x
    x = 13,508,256,792.56/145,940.08
  6. Step 6: Final answer
    x = 92,560.30

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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.