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Finding the Fourth Proportional to 100,718.31, 151,108.71 and 41,558.74

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Solution

The fourth proportional to 100,718.31, 151,108.71 and 41,558.74 is: 62,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,718.31 : 151,108.71 = 41,558.74 : x
  2. Step 2: Convert to fraction form
    100,718.31/151,108.71 = 41,558.74/x
  3. Step 3: Cross multiply
    100,718.31x = 151,108.71 × 41,558.74
  4. Step 4: Simplify right side
    100,718.31x = 6,279,887,590.63
  5. Step 5: Solve for x
    x = 6,279,887,590.63/100,718.31
  6. Step 6: Final answer
    x = 62,351.00

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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.