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Finding the Fourth Proportional to 292,072.38, 403,059.90 and 157,936.38

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Solution

The fourth proportional to 292,072.38, 403,059.90 and 157,936.38 is: 217,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,072.38 : 403,059.90 = 157,936.38 : x
  2. Step 2: Convert to fraction form
    292,072.38/403,059.90 = 157,936.38/x
  3. Step 3: Cross multiply
    292,072.38x = 403,059.90 × 157,936.38
  4. Step 4: Simplify right side
    292,072.38x = 63,657,821,529.16
  5. Step 5: Solve for x
    x = 63,657,821,529.16/292,072.38
  6. Step 6: Final answer
    x = 217,952.21

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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.