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Finding the Fourth Proportional to 64,454.88, 88,947.36 and 36,160.50

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Solution

The fourth proportional to 64,454.88, 88,947.36 and 36,160.50 is: 49,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,454.88 : 88,947.36 = 36,160.50 : x
  2. Step 2: Convert to fraction form
    64,454.88/88,947.36 = 36,160.50/x
  3. Step 3: Cross multiply
    64,454.88x = 88,947.36 × 36,160.50
  4. Step 4: Simplify right side
    64,454.88x = 3,216,381,011.28
  5. Step 5: Solve for x
    x = 3,216,381,011.28/64,454.88
  6. Step 6: Final answer
    x = 49,901.28

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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.