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Finding the Fourth Proportional to 94,087, 129,841.72 and 51,649.48

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Solution

The fourth proportional to 94,087, 129,841.72 and 51,649.48 is: 71,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,087 : 129,841.72 = 51,649.48 : x
  2. Step 2: Convert to fraction form
    94,087/129,841.72 = 51,649.48/x
  3. Step 3: Cross multiply
    94,087x = 129,841.72 × 51,649.48
  4. Step 4: Simplify right side
    94,087x = 6,706,257,320.31
  5. Step 5: Solve for x
    x = 6,706,257,320.31/94,087
  6. Step 6: Final answer
    x = 71,277.19

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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.