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Finding the Fourth Proportional to 144,557.66, 216,769.01 and 54,531.01

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Solution

The fourth proportional to 144,557.66, 216,769.01 and 54,531.01 is: 81,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,557.66 : 216,769.01 = 54,531.01 : x
  2. Step 2: Convert to fraction form
    144,557.66/216,769.01 = 54,531.01/x
  3. Step 3: Cross multiply
    144,557.66x = 216,769.01 × 54,531.01
  4. Step 4: Simplify right side
    144,557.66x = 11,820,632,237.42
  5. Step 5: Solve for x
    x = 11,820,632,237.42/144,557.66
  6. Step 6: Final answer
    x = 81,771.05

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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.