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Finding the Fourth Proportional to 292,291.38, 403,363.26 and 158,155.38

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Solution

The fourth proportional to 292,291.38, 403,363.26 and 158,155.38 is: 218,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,291.38 : 403,363.26 = 158,155.38 : x
  2. Step 2: Convert to fraction form
    292,291.38/403,363.26 = 158,155.38/x
  3. Step 3: Cross multiply
    292,291.38x = 403,363.26 × 158,155.38
  4. Step 4: Simplify right side
    292,291.38x = 63,794,069,663.34
  5. Step 5: Solve for x
    x = 63,794,069,663.34/292,291.38
  6. Step 6: Final answer
    x = 218,255.05

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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.