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Finding the Fourth Proportional to 64,733.76, 89,281.44 and 42,373.44

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Solution

The fourth proportional to 64,733.76, 89,281.44 and 42,373.44 is: 58,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,733.76 : 89,281.44 = 42,373.44 : x
  2. Step 2: Convert to fraction form
    64,733.76/89,281.44 = 42,373.44/x
  3. Step 3: Cross multiply
    64,733.76x = 89,281.44 × 42,373.44
  4. Step 4: Simplify right side
    64,733.76x = 3,783,161,740.95
  5. Step 5: Solve for x
    x = 3,783,161,740.95/64,733.76
  6. Step 6: Final answer
    x = 58,441.87

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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.