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Finding the Fourth Proportional to 292,151.50, 403,169.10 and 158,015.50

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Solution

The fourth proportional to 292,151.50, 403,169.10 and 158,015.50 is: 218,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,151.50 : 403,169.10 = 158,015.50 : x
  2. Step 2: Convert to fraction form
    292,151.50/403,169.10 = 158,015.50/x
  3. Step 3: Cross multiply
    292,151.50x = 403,169.10 × 158,015.50
  4. Step 4: Simplify right side
    292,151.50x = 63,706,966,921.05
  5. Step 5: Solve for x
    x = 63,706,966,921.05/292,151.50
  6. Step 6: Final answer
    x = 218,061.41

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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.