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Finding the Fourth Proportional to 77,663.89, 116,612.52 and 44,421.49

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Solution

The fourth proportional to 77,663.89, 116,612.52 and 44,421.49 is: 66,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,663.89 : 116,612.52 = 44,421.49 : x
  2. Step 2: Convert to fraction form
    77,663.89/116,612.52 = 44,421.49/x
  3. Step 3: Cross multiply
    77,663.89x = 116,612.52 × 44,421.49
  4. Step 4: Simplify right side
    77,663.89x = 5,180,101,891.05
  5. Step 5: Solve for x
    x = 5,180,101,891.05/77,663.89
  6. Step 6: Final answer
    x = 66,698.98

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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.