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Finding the Fourth Proportional to 292,010.75, 402,974.93 and 157,874.75

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Solution

The fourth proportional to 292,010.75, 402,974.93 and 157,874.75 is: 217,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,010.75 : 402,974.93 = 157,874.75 : x
  2. Step 2: Convert to fraction form
    292,010.75/402,974.93 = 157,874.75/x
  3. Step 3: Cross multiply
    292,010.75x = 402,974.93 × 157,874.75
  4. Step 4: Simplify right side
    292,010.75x = 63,619,566,330.02
  5. Step 5: Solve for x
    x = 63,619,566,330.02/292,010.75
  6. Step 6: Final answer
    x = 217,867.21

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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.