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Finding the Fourth Proportional to 255,889.73, 353,013.62 and 148,397.47

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Solution

The fourth proportional to 255,889.73, 353,013.62 and 148,397.47 is: 204,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,889.73 : 353,013.62 = 148,397.47 : x
  2. Step 2: Convert to fraction form
    255,889.73/353,013.62 = 148,397.47/x
  3. Step 3: Cross multiply
    255,889.73x = 353,013.62 × 148,397.47
  4. Step 4: Simplify right side
    255,889.73x = 52,386,326,459.02
  5. Step 5: Solve for x
    x = 52,386,326,459.02/255,889.73
  6. Step 6: Final answer
    x = 204,722.27

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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.