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Finding the Fourth Proportional to 127,599.87, 191,258.85 and 52,678.71

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Solution

The fourth proportional to 127,599.87, 191,258.85 and 52,678.71 is: 78,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,599.87 : 191,258.85 = 52,678.71 : x
  2. Step 2: Convert to fraction form
    127,599.87/191,258.85 = 52,678.71/x
  3. Step 3: Cross multiply
    127,599.87x = 191,258.85 × 52,678.71
  4. Step 4: Simplify right side
    127,599.87x = 10,075,269,494.08
  5. Step 5: Solve for x
    x = 10,075,269,494.08/127,599.87
  6. Step 6: Final answer
    x = 78,959.87

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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.