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Finding the Fourth Proportional to 292,131.25, 403,141.13 and 157,995.25

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Solution

The fourth proportional to 292,131.25, 403,141.13 and 157,995.25 is: 218,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,131.25 : 403,141.13 = 157,995.25 : x
  2. Step 2: Convert to fraction form
    292,131.25/403,141.13 = 157,995.25/x
  3. Step 3: Cross multiply
    292,131.25x = 403,141.13 × 157,995.25
  4. Step 4: Simplify right side
    292,131.25x = 63,694,383,619.63
  5. Step 5: Solve for x
    x = 63,694,383,619.63/292,131.25
  6. Step 6: Final answer
    x = 218,033.45

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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.