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Finding the Fourth Proportional to 168,480,315.30, 236,552,685.90 and 168,480,315.30

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Solution

The fourth proportional to 168,480,315.30, 236,552,685.90 and 168,480,315.30 is: 236,552,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,480,315.30 : 236,552,685.90 = 168,480,315.30 : x
  2. Step 2: Convert to fraction form
    168,480,315.30/236,552,685.90 = 168,480,315.30/x
  3. Step 3: Cross multiply
    168,480,315.30x = 236,552,685.90 × 168,480,315.30
  4. Step 4: Simplify right side
    168,480,315.30x = 39,854,471,105,493,872
  5. Step 5: Solve for x
    x = 39,854,471,105,493,872/168,480,315.30
  6. Step 6: Final answer
    x = 236,552,685.90

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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.