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Finding the Fourth Proportional to 77,498.40, 116,161.20 and 44,234.40

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Solution

The fourth proportional to 77,498.40, 116,161.20 and 44,234.40 is: 66,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,498.40 : 116,161.20 = 44,234.40 : x
  2. Step 2: Convert to fraction form
    77,498.40/116,161.20 = 44,234.40/x
  3. Step 3: Cross multiply
    77,498.40x = 116,161.20 × 44,234.40
  4. Step 4: Simplify right side
    77,498.40x = 5,138,320,985.28
  5. Step 5: Solve for x
    x = 5,138,320,985.28/77,498.40
  6. Step 6: Final answer
    x = 66,302.28

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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.