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Finding the Fourth Proportional to 140,246.88, 210,056.52 and 65,254.66

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Solution

The fourth proportional to 140,246.88, 210,056.52 and 65,254.66 is: 97,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,246.88 : 210,056.52 = 65,254.66 : x
  2. Step 2: Convert to fraction form
    140,246.88/210,056.52 = 65,254.66/x
  3. Step 3: Cross multiply
    140,246.88x = 210,056.52 × 65,254.66
  4. Step 4: Simplify right side
    140,246.88x = 13,707,166,793.38
  5. Step 5: Solve for x
    x = 13,707,166,793.38/140,246.88
  6. Step 6: Final answer
    x = 97,735.98

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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.