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Finding the Fourth Proportional to 144,656.48, 216,995.11 and 49,885.30

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Solution

The fourth proportional to 144,656.48, 216,995.11 and 49,885.30 is: 74,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,656.48 : 216,995.11 = 49,885.30 : x
  2. Step 2: Convert to fraction form
    144,656.48/216,995.11 = 49,885.30/x
  3. Step 3: Cross multiply
    144,656.48x = 216,995.11 × 49,885.30
  4. Step 4: Simplify right side
    144,656.48x = 10,824,866,160.88
  5. Step 5: Solve for x
    x = 10,824,866,160.88/144,656.48
  6. Step 6: Final answer
    x = 74,831.53

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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.