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Finding the Fourth Proportional to 195,454.40, 292,965.60 and 77,086.40

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Solution

The fourth proportional to 195,454.40, 292,965.60 and 77,086.40 is: 115,544.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,454.40 : 292,965.60 = 77,086.40 : x
  2. Step 2: Convert to fraction form
    195,454.40/292,965.60 = 77,086.40/x
  3. Step 3: Cross multiply
    195,454.40x = 292,965.60 × 77,086.40
  4. Step 4: Simplify right side
    195,454.40x = 22,583,663,427.84
  5. Step 5: Solve for x
    x = 22,583,663,427.84/195,454.40
  6. Step 6: Final answer
    x = 115,544.41

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1.5x scale

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.