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Finding the Fourth Proportional to 187,924.69, 281,848.78 and 69,567.90

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Solution

The fourth proportional to 187,924.69, 281,848.78 and 69,567.90 is: 104,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,924.69 : 281,848.78 = 69,567.90 : x
  2. Step 2: Convert to fraction form
    187,924.69/281,848.78 = 69,567.90/x
  3. Step 3: Cross multiply
    187,924.69x = 281,848.78 × 69,567.90
  4. Step 4: Simplify right side
    187,924.69x = 19,607,627,742.16
  5. Step 5: Solve for x
    x = 19,607,627,742.16/187,924.69
  6. Step 6: Final answer
    x = 104,337.69

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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.