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Finding the Fourth Proportional to 248,412.90, 342,854.64 and 146,432.46

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Solution

The fourth proportional to 248,412.90, 342,854.64 and 146,432.46 is: 202,103.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,412.90 : 342,854.64 = 146,432.46 : x
  2. Step 2: Convert to fraction form
    248,412.90/342,854.64 = 146,432.46/x
  3. Step 3: Cross multiply
    248,412.90x = 342,854.64 × 146,432.46
  4. Step 4: Simplify right side
    248,412.90x = 50,205,048,357.61
  5. Step 5: Solve for x
    x = 50,205,048,357.61/248,412.90
  6. Step 6: Final answer
    x = 202,103.23

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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.