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Finding the Fourth Proportional to 235,144.36, 352,642.02 and 77,330.44

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Solution

The fourth proportional to 235,144.36, 352,642.02 and 77,330.44 is: 115,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,144.36 : 352,642.02 = 77,330.44 : x
  2. Step 2: Convert to fraction form
    235,144.36/352,642.02 = 77,330.44/x
  3. Step 3: Cross multiply
    235,144.36x = 352,642.02 × 77,330.44
  4. Step 4: Simplify right side
    235,144.36x = 27,269,962,569.09
  5. Step 5: Solve for x
    x = 27,269,962,569.09/235,144.36
  6. Step 6: Final answer
    x = 115,971.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.