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Finding the Fourth Proportional to 292,774.50, 439,161.75 and 71,158.50

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Solution

The fourth proportional to 292,774.50, 439,161.75 and 71,158.50 is: 106,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,774.50 : 439,161.75 = 71,158.50 : x
  2. Step 2: Convert to fraction form
    292,774.50/439,161.75 = 71,158.50/x
  3. Step 3: Cross multiply
    292,774.50x = 439,161.75 × 71,158.50
  4. Step 4: Simplify right side
    292,774.50x = 31,250,091,387.38
  5. Step 5: Solve for x
    x = 31,250,091,387.38/292,774.50
  6. Step 6: Final answer
    x = 106,737.75

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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.