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Finding the Fourth Proportional to 261,775.92, 361,265.94 and 197,129.40

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Solution

The fourth proportional to 261,775.92, 361,265.94 and 197,129.40 is: 272,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,775.92 : 361,265.94 = 197,129.40 : x
  2. Step 2: Convert to fraction form
    261,775.92/361,265.94 = 197,129.40/x
  3. Step 3: Cross multiply
    261,775.92x = 361,265.94 × 197,129.40
  4. Step 4: Simplify right side
    261,775.92x = 71,216,137,992.64
  5. Step 5: Solve for x
    x = 71,216,137,992.64/261,775.92
  6. Step 6: Final answer
    x = 272,050.00

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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.