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Finding the Fourth Proportional to 248,452.71, 342,854.53 and 141,020.79

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Solution

The fourth proportional to 248,452.71, 342,854.53 and 141,020.79 is: 194,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,452.71 : 342,854.53 = 141,020.79 : x
  2. Step 2: Convert to fraction form
    248,452.71/342,854.53 = 141,020.79/x
  3. Step 3: Cross multiply
    248,452.71x = 342,854.53 × 141,020.79
  4. Step 4: Simplify right side
    248,452.71x = 48,349,616,675.68
  5. Step 5: Solve for x
    x = 48,349,616,675.68/248,452.71
  6. Step 6: Final answer
    x = 194,602.90

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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.