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Finding the Fourth Proportional to 77,650.92, 107,225.48 and 73,665.08

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Solution

The fourth proportional to 77,650.92, 107,225.48 and 73,665.08 is: 101,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,650.92 : 107,225.48 = 73,665.08 : x
  2. Step 2: Convert to fraction form
    77,650.92/107,225.48 = 73,665.08/x
  3. Step 3: Cross multiply
    77,650.92x = 107,225.48 × 73,665.08
  4. Step 4: Simplify right side
    77,650.92x = 7,898,773,562.24
  5. Step 5: Solve for x
    x = 7,898,773,562.24/77,650.92
  6. Step 6: Final answer
    x = 101,721.57

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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.