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Finding the Fourth Proportional to 264,586.86, 396,934.98 and 87,104.52

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Solution

The fourth proportional to 264,586.86, 396,934.98 and 87,104.52 is: 130,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,586.86 : 396,934.98 = 87,104.52 : x
  2. Step 2: Convert to fraction form
    264,586.86/396,934.98 = 87,104.52/x
  3. Step 3: Cross multiply
    264,586.86x = 396,934.98 × 87,104.52
  4. Step 4: Simplify right side
    264,586.86x = 34,574,830,904.11
  5. Step 5: Solve for x
    x = 34,574,830,904.11/264,586.86
  6. Step 6: Final answer
    x = 130,674.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.