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Finding the Fourth Proportional to 186,920.60, 257,947.07 and 106,346.39

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Solution

The fourth proportional to 186,920.60, 257,947.07 and 106,346.39 is: 146,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,920.60 : 257,947.07 = 106,346.39 : x
  2. Step 2: Convert to fraction form
    186,920.60/257,947.07 = 106,346.39/x
  3. Step 3: Cross multiply
    186,920.60x = 257,947.07 × 106,346.39
  4. Step 4: Simplify right side
    186,920.60x = 27,431,737,884.11
  5. Step 5: Solve for x
    x = 27,431,737,884.11/186,920.60
  6. Step 6: Final answer
    x = 146,756.10

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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.