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Finding the Fourth Proportional to 123,348.30, 172,337.70 and 123,348.30

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Solution

The fourth proportional to 123,348.30, 172,337.70 and 123,348.30 is: 172,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.30 : 172,337.70 = 123,348.30 : x
  2. Step 2: Convert to fraction form
    123,348.30/172,337.70 = 123,348.30/x
  3. Step 3: Cross multiply
    123,348.30x = 172,337.70 × 123,348.30
  4. Step 4: Simplify right side
    123,348.30x = 21,257,562,320.91
  5. Step 5: Solve for x
    x = 21,257,562,320.91/123,348.30
  6. Step 6: Final answer
    x = 172,337.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.