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Finding the Fourth Proportional to 187,488,081.90, 261,878,652.90 and 187,488,081.90

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Solution

The fourth proportional to 187,488,081.90, 261,878,652.90 and 187,488,081.90 is: 261,878,652.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,488,081.90 : 261,878,652.90 = 187,488,081.90 : x
  2. Step 2: Convert to fraction form
    187,488,081.90/261,878,652.90 = 187,488,081.90/x
  3. Step 3: Cross multiply
    187,488,081.90x = 261,878,652.90 × 187,488,081.90
  4. Step 4: Simplify right side
    187,488,081.90x = 49,099,126,322,776,872
  5. Step 5: Solve for x
    x = 49,099,126,322,776,872/187,488,081.90
  6. Step 6: Final answer
    x = 261,878,652.90

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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.