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Finding the Fourth Proportional to 64,354.49, 88,710.75 and 45,180.48

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Solution

The fourth proportional to 64,354.49, 88,710.75 and 45,180.48 is: 62,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.49 : 88,710.75 = 45,180.48 : x
  2. Step 2: Convert to fraction form
    64,354.49/88,710.75 = 45,180.48/x
  3. Step 3: Cross multiply
    64,354.49x = 88,710.75 × 45,180.48
  4. Step 4: Simplify right side
    64,354.49x = 4,007,993,822.61
  5. Step 5: Solve for x
    x = 4,007,993,822.61/64,354.49
  6. Step 6: Final answer
    x = 62,279.94

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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.