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Finding the Fourth Proportional to 64,455.88, 88,948.74 and 36,161.50

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Solution

The fourth proportional to 64,455.88, 88,948.74 and 36,161.50 is: 49,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.88 : 88,948.74 = 36,161.50 : x
  2. Step 2: Convert to fraction form
    64,455.88/88,948.74 = 36,161.50/x
  3. Step 3: Cross multiply
    64,455.88x = 88,948.74 × 36,161.50
  4. Step 4: Simplify right side
    64,455.88x = 3,216,519,861.51
  5. Step 5: Solve for x
    x = 3,216,519,861.51/64,455.88
  6. Step 6: Final answer
    x = 49,902.66

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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.