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Finding the Fourth Proportional to 253,642.14, 350,032.44 and 138,925.59

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Solution

The fourth proportional to 253,642.14, 350,032.44 and 138,925.59 is: 191,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,642.14 : 350,032.44 = 138,925.59 : x
  2. Step 2: Convert to fraction form
    253,642.14/350,032.44 = 138,925.59/x
  3. Step 3: Cross multiply
    253,642.14x = 350,032.44 × 138,925.59
  4. Step 4: Simplify right side
    253,642.14x = 48,628,463,246.14
  5. Step 5: Solve for x
    x = 48,628,463,246.14/253,642.14
  6. Step 6: Final answer
    x = 191,720.76

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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.