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Finding the Fourth Proportional to 100,264.46, 138,351.77 and 59,963.51

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Solution

The fourth proportional to 100,264.46, 138,351.77 and 59,963.51 is: 82,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,264.46 : 138,351.77 = 59,963.51 : x
  2. Step 2: Convert to fraction form
    100,264.46/138,351.77 = 59,963.51/x
  3. Step 3: Cross multiply
    100,264.46x = 138,351.77 × 59,963.51
  4. Step 4: Simplify right side
    100,264.46x = 8,296,056,752.34
  5. Step 5: Solve for x
    x = 8,296,056,752.34/100,264.46
  6. Step 6: Final answer
    x = 82,741.75

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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.