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Finding the Fourth Proportional to 265,885.90, 366,923.68 and 145,029.78

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Solution

The fourth proportional to 265,885.90, 366,923.68 and 145,029.78 is: 200,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,885.90 : 366,923.68 = 145,029.78 : x
  2. Step 2: Convert to fraction form
    265,885.90/366,923.68 = 145,029.78/x
  3. Step 3: Cross multiply
    265,885.90x = 366,923.68 × 145,029.78
  4. Step 4: Simplify right side
    265,885.90x = 53,214,860,587.19
  5. Step 5: Solve for x
    x = 53,214,860,587.19/265,885.90
  6. Step 6: Final answer
    x = 200,141.72

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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.