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Finding the Fourth Proportional to 64,475.40, 88,970.10 and 36,175.88

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Solution

The fourth proportional to 64,475.40, 88,970.10 and 36,175.88 is: 49,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,475.40 : 88,970.10 = 36,175.88 : x
  2. Step 2: Convert to fraction form
    64,475.40/88,970.10 = 36,175.88/x
  3. Step 3: Cross multiply
    64,475.40x = 88,970.10 × 36,175.88
  4. Step 4: Simplify right side
    64,475.40x = 3,218,571,661.19
  5. Step 5: Solve for x
    x = 3,218,571,661.19/64,475.40
  6. Step 6: Final answer
    x = 49,919.37

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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.