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Finding the Fourth Proportional to 187,488,080.40, 261,878,650.80 and 187,488,080.40

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Solution

The fourth proportional to 187,488,080.40, 261,878,650.80 and 187,488,080.40 is: 261,878,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,488,080.40 : 261,878,650.80 = 187,488,080.40 : x
  2. Step 2: Convert to fraction form
    187,488,080.40/261,878,650.80 = 187,488,080.40/x
  3. Step 3: Cross multiply
    187,488,080.40x = 261,878,650.80 × 187,488,080.40
  4. Step 4: Simplify right side
    187,488,080.40x = 49,099,125,536,233,928
  5. Step 5: Solve for x
    x = 49,099,125,536,233,928/187,488,080.40
  6. Step 6: Final answer
    x = 261,878,650.80

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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.