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Finding the Fourth Proportional to 64,476.88, 88,978.14 and 36,182.57

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Solution

The fourth proportional to 64,476.88, 88,978.14 and 36,182.57 is: 49,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,476.88 : 88,978.14 = 36,182.57 : x
  2. Step 2: Convert to fraction form
    64,476.88/88,978.14 = 36,182.57/x
  3. Step 3: Cross multiply
    64,476.88x = 88,978.14 × 36,182.57
  4. Step 4: Simplify right side
    64,476.88x = 3,219,457,334.13
  5. Step 5: Solve for x
    x = 3,219,457,334.13/64,476.88
  6. Step 6: Final answer
    x = 49,931.97

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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.