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Finding the Fourth Proportional to 156,937.65, 235,406.48 and 137,254.65

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Solution

The fourth proportional to 156,937.65, 235,406.48 and 137,254.65 is: 205,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.65 : 235,406.48 = 137,254.65 : x
  2. Step 2: Convert to fraction form
    156,937.65/235,406.48 = 137,254.65/x
  3. Step 3: Cross multiply
    156,937.65x = 235,406.48 × 137,254.65
  4. Step 4: Simplify right side
    156,937.65x = 32,310,633,333.86
  5. Step 5: Solve for x
    x = 32,310,633,333.86/156,937.65
  6. Step 6: Final answer
    x = 205,881.98

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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.