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Finding the Fourth Proportional to 64,354.46, 88,710.71 and 45,180.44

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Solution

The fourth proportional to 64,354.46, 88,710.71 and 45,180.44 is: 62,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.46 : 88,710.71 = 45,180.44 : x
  2. Step 2: Convert to fraction form
    64,354.46/88,710.71 = 45,180.44/x
  3. Step 3: Cross multiply
    64,354.46x = 88,710.71 × 45,180.44
  4. Step 4: Simplify right side
    64,354.46x = 4,007,988,910.51
  5. Step 5: Solve for x
    x = 4,007,988,910.51/64,354.46
  6. Step 6: Final answer
    x = 62,279.89

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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.