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Finding the Fourth Proportional to 15,172,341.90, 22,758,512.85 and 15,172,341.90

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Solution

The fourth proportional to 15,172,341.90, 22,758,512.85 and 15,172,341.90 is: 22,758,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,341.90 : 22,758,512.85 = 15,172,341.90 : x
  2. Step 2: Convert to fraction form
    15,172,341.90/22,758,512.85 = 15,172,341.90/x
  3. Step 3: Cross multiply
    15,172,341.90x = 22,758,512.85 × 15,172,341.90
  4. Step 4: Simplify right side
    15,172,341.90x = 345,299,938,095,743.44
  5. Step 5: Solve for x
    x = 345,299,938,095,743.44/15,172,341.90
  6. Step 6: Final answer
    x = 22,758,512.85

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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.