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Finding the Fourth Proportional to 243,168.93, 335,540.07 and 141,178.23

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Solution

The fourth proportional to 243,168.93, 335,540.07 and 141,178.23 is: 194,806.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,168.93 : 335,540.07 = 141,178.23 : x
  2. Step 2: Convert to fraction form
    243,168.93/335,540.07 = 141,178.23/x
  3. Step 3: Cross multiply
    243,168.93x = 335,540.07 × 141,178.23
  4. Step 4: Simplify right side
    243,168.93x = 47,370,953,176.68
  5. Step 5: Solve for x
    x = 47,370,953,176.68/243,168.93
  6. Step 6: Final answer
    x = 194,806.77

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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.