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Finding the Fourth Proportional to 172,087,029.90, 258,130,544.85 and 172,087,029.90

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Solution

The fourth proportional to 172,087,029.90, 258,130,544.85 and 172,087,029.90 is: 258,130,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,087,029.90 : 258,130,544.85 = 172,087,029.90 : x
  2. Step 2: Convert to fraction form
    172,087,029.90/258,130,544.85 = 172,087,029.90/x
  3. Step 3: Cross multiply
    172,087,029.90x = 258,130,544.85 × 172,087,029.90
  4. Step 4: Simplify right side
    172,087,029.90x = 44,420,918,789,705,240
  5. Step 5: Solve for x
    x = 44,420,918,789,705,240/172,087,029.90
  6. Step 6: Final answer
    x = 258,130,544.85

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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.