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Finding the Fourth Proportional to 143,957.34, 216,001.62 and 73,885.86

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Solution

The fourth proportional to 143,957.34, 216,001.62 and 73,885.86 is: 110,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,957.34 : 216,001.62 = 73,885.86 : x
  2. Step 2: Convert to fraction form
    143,957.34/216,001.62 = 73,885.86/x
  3. Step 3: Cross multiply
    143,957.34x = 216,001.62 × 73,885.86
  4. Step 4: Simplify right side
    143,957.34x = 15,959,465,455.09
  5. Step 5: Solve for x
    x = 15,959,465,455.09/143,957.34
  6. Step 6: Final answer
    x = 110,862.46

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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.