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Finding the Fourth Proportional to 140,751.66, 211,127.88 and 70,614.56

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Solution

The fourth proportional to 140,751.66, 211,127.88 and 70,614.56 is: 105,922.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,751.66 : 211,127.88 = 70,614.56 : x
  2. Step 2: Convert to fraction form
    140,751.66/211,127.88 = 70,614.56/x
  3. Step 3: Cross multiply
    140,751.66x = 211,127.88 × 70,614.56
  4. Step 4: Simplify right side
    140,751.66x = 14,908,702,349.93
  5. Step 5: Solve for x
    x = 14,908,702,349.93/140,751.66
  6. Step 6: Final answer
    x = 105,922.04

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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.