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Finding the Fourth Proportional to 261,889.02, 361,437.71 and 147,167.91

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Solution

The fourth proportional to 261,889.02, 361,437.71 and 147,167.91 is: 203,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,889.02 : 361,437.71 = 147,167.91 : x
  2. Step 2: Convert to fraction form
    261,889.02/361,437.71 = 147,167.91/x
  3. Step 3: Cross multiply
    261,889.02x = 361,437.71 × 147,167.91
  4. Step 4: Simplify right side
    261,889.02x = 53,192,031,640.05
  5. Step 5: Solve for x
    x = 53,192,031,640.05/261,889.02
  6. Step 6: Final answer
    x = 203,109.06

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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.