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Finding the Fourth Proportional to 100,504.82, 138,696.76 and 59,677.10

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Solution

The fourth proportional to 100,504.82, 138,696.76 and 59,677.10 is: 82,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,504.82 : 138,696.76 = 59,677.10 : x
  2. Step 2: Convert to fraction form
    100,504.82/138,696.76 = 59,677.10/x
  3. Step 3: Cross multiply
    100,504.82x = 138,696.76 × 59,677.10
  4. Step 4: Simplify right side
    100,504.82x = 8,277,020,685.41
  5. Step 5: Solve for x
    x = 8,277,020,685.41/100,504.82
  6. Step 6: Final answer
    x = 82,354.46

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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.