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Finding the Fourth Proportional to 77,507.30, 106,959.13 and 43,514.94

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Solution

The fourth proportional to 77,507.30, 106,959.13 and 43,514.94 is: 60,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,507.30 : 106,959.13 = 43,514.94 : x
  2. Step 2: Convert to fraction form
    77,507.30/106,959.13 = 43,514.94/x
  3. Step 3: Cross multiply
    77,507.30x = 106,959.13 × 43,514.94
  4. Step 4: Simplify right side
    77,507.30x = 4,654,320,124.40
  5. Step 5: Solve for x
    x = 4,654,320,124.40/77,507.30
  6. Step 6: Final answer
    x = 60,050.09

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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.