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Finding the Fourth Proportional to 110,354.74, 152,279.01 and 61,945.57

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Solution

The fourth proportional to 110,354.74, 152,279.01 and 61,945.57 is: 85,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,354.74 : 152,279.01 = 61,945.57 : x
  2. Step 2: Convert to fraction form
    110,354.74/152,279.01 = 61,945.57/x
  3. Step 3: Cross multiply
    110,354.74x = 152,279.01 × 61,945.57
  4. Step 4: Simplify right side
    110,354.74x = 9,433,010,073.49
  5. Step 5: Solve for x
    x = 9,433,010,073.49/110,354.74
  6. Step 6: Final answer
    x = 85,478.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.