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Finding the Fourth Proportional to 79,966.50, 110,363.50 and 46,432.50

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Solution

The fourth proportional to 79,966.50, 110,363.50 and 46,432.50 is: 64,082.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,966.50 : 110,363.50 = 46,432.50 : x
  2. Step 2: Convert to fraction form
    79,966.50/110,363.50 = 46,432.50/x
  3. Step 3: Cross multiply
    79,966.50x = 110,363.50 × 46,432.50
  4. Step 4: Simplify right side
    79,966.50x = 5,124,453,213.75
  5. Step 5: Solve for x
    x = 5,124,453,213.75/79,966.50
  6. Step 6: Final answer
    x = 64,082.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.