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Finding the Fourth Proportional to 64,454.76, 88,947.86 and 36,158.63

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Solution

The fourth proportional to 64,454.76, 88,947.86 and 36,158.63 is: 49,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,454.76 : 88,947.86 = 36,158.63 : x
  2. Step 2: Convert to fraction form
    64,454.76/88,947.86 = 36,158.63/x
  3. Step 3: Cross multiply
    64,454.76x = 88,947.86 × 36,158.63
  4. Step 4: Simplify right side
    64,454.76x = 3,216,232,133.50
  5. Step 5: Solve for x
    x = 3,216,232,133.50/64,454.76
  6. Step 6: Final answer
    x = 49,899.06

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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.