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Finding the Fourth Proportional to 64,478.34, 88,986.50 and 36,184.14

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Solution

The fourth proportional to 64,478.34, 88,986.50 and 36,184.14 is: 49,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.34 : 88,986.50 = 36,184.14 : x
  2. Step 2: Convert to fraction form
    64,478.34/88,986.50 = 36,184.14/x
  3. Step 3: Cross multiply
    64,478.34x = 88,986.50 × 36,184.14
  4. Step 4: Simplify right side
    64,478.34x = 3,219,899,974.11
  5. Step 5: Solve for x
    x = 3,219,899,974.11/64,478.34
  6. Step 6: Final answer
    x = 49,937.70

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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.