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Finding the Fourth Proportional to 292,803.76, 404,078.88 and 161,983.23

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Solution

The fourth proportional to 292,803.76, 404,078.88 and 161,983.23 is: 223,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,803.76 : 404,078.88 = 161,983.23 : x
  2. Step 2: Convert to fraction form
    292,803.76/404,078.88 = 161,983.23/x
  3. Step 3: Cross multiply
    292,803.76x = 404,078.88 × 161,983.23
  4. Step 4: Simplify right side
    292,803.76x = 65,454,001,249.32
  5. Step 5: Solve for x
    x = 65,454,001,249.32/292,803.76
  6. Step 6: Final answer
    x = 223,542.21

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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.