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Finding the Fourth Proportional to 292,110.56, 403,113.78 and 157,974.56

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Solution

The fourth proportional to 292,110.56, 403,113.78 and 157,974.56 is: 218,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,110.56 : 403,113.78 = 157,974.56 : x
  2. Step 2: Convert to fraction form
    292,110.56/403,113.78 = 157,974.56/x
  3. Step 3: Cross multiply
    292,110.56x = 403,113.78 × 157,974.56
  4. Step 4: Simplify right side
    292,110.56x = 63,681,722,025.44
  5. Step 5: Solve for x
    x = 63,681,722,025.44/292,110.56
  6. Step 6: Final answer
    x = 218,005.55

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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.