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Finding the Fourth Proportional to 64,448.34, 88,932.74 and 36,148.56

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Solution

The fourth proportional to 64,448.34, 88,932.74 and 36,148.56 is: 49,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,448.34 : 88,932.74 = 36,148.56 : x
  2. Step 2: Convert to fraction form
    64,448.34/88,932.74 = 36,148.56/x
  3. Step 3: Cross multiply
    64,448.34x = 88,932.74 × 36,148.56
  4. Step 4: Simplify right side
    64,448.34x = 3,214,790,307.11
  5. Step 5: Solve for x
    x = 3,214,790,307.11/64,448.34
  6. Step 6: Final answer
    x = 49,881.66

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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.