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Finding the Fourth Proportional to 144,610.32, 216,894.96 and 55,905.60

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Solution

The fourth proportional to 144,610.32, 216,894.96 and 55,905.60 is: 83,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,610.32 : 216,894.96 = 55,905.60 : x
  2. Step 2: Convert to fraction form
    144,610.32/216,894.96 = 55,905.60/x
  3. Step 3: Cross multiply
    144,610.32x = 216,894.96 × 55,905.60
  4. Step 4: Simplify right side
    144,610.32x = 12,125,642,875.78
  5. Step 5: Solve for x
    x = 12,125,642,875.78/144,610.32
  6. Step 6: Final answer
    x = 83,850.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.