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Finding the Fourth Proportional to 114,120.31, 171,253.90 and 61,566.07

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Solution

The fourth proportional to 114,120.31, 171,253.90 and 61,566.07 is: 92,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,120.31 : 171,253.90 = 61,566.07 : x
  2. Step 2: Convert to fraction form
    114,120.31/171,253.90 = 61,566.07/x
  3. Step 3: Cross multiply
    114,120.31x = 171,253.90 × 61,566.07
  4. Step 4: Simplify right side
    114,120.31x = 10,543,429,595.17
  5. Step 5: Solve for x
    x = 10,543,429,595.17/114,120.31
  6. Step 6: Final answer
    x = 92,388.72

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1.5x scale

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.