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Finding the Fourth Proportional to 64,478.35, 88,986.51 and 36,184.15

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Solution

The fourth proportional to 64,478.35, 88,986.51 and 36,184.15 is: 49,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.35 : 88,986.51 = 36,184.15 : x
  2. Step 2: Convert to fraction form
    64,478.35/88,986.51 = 36,184.15/x
  3. Step 3: Cross multiply
    64,478.35x = 88,986.51 × 36,184.15
  4. Step 4: Simplify right side
    64,478.35x = 3,219,901,225.82
  5. Step 5: Solve for x
    x = 3,219,901,225.82/64,478.35
  6. Step 6: Final answer
    x = 49,937.71

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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.