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Finding the Fourth Proportional to 140,810.59, 211,658.75 and 122,320.87

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Solution

The fourth proportional to 140,810.59, 211,658.75 and 122,320.87 is: 183,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,810.59 : 211,658.75 = 122,320.87 : x
  2. Step 2: Convert to fraction form
    140,810.59/211,658.75 = 122,320.87/x
  3. Step 3: Cross multiply
    140,810.59x = 211,658.75 × 122,320.87
  4. Step 4: Simplify right side
    140,810.59x = 25,890,281,844.82
  5. Step 5: Solve for x
    x = 25,890,281,844.82/140,810.59
  6. Step 6: Final answer
    x = 183,866.02

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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.