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Finding the Fourth Proportional to 292,350.72, 403,443.20 and 158,214.72

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Solution

The fourth proportional to 292,350.72, 403,443.20 and 158,214.72 is: 218,335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,350.72 : 403,443.20 = 158,214.72 : x
  2. Step 2: Convert to fraction form
    292,350.72/403,443.20 = 158,214.72/x
  3. Step 3: Cross multiply
    292,350.72x = 403,443.20 × 158,214.72
  4. Step 4: Simplify right side
    292,350.72x = 63,830,652,923.90
  5. Step 5: Solve for x
    x = 63,830,652,923.90/292,350.72
  6. Step 6: Final answer
    x = 218,335.88

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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.