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Finding the Fourth Proportional to 183,987.67, 253,894.89 and 107,513.95

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Solution

The fourth proportional to 183,987.67, 253,894.89 and 107,513.95 is: 148,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,987.67 : 253,894.89 = 107,513.95 : x
  2. Step 2: Convert to fraction form
    183,987.67/253,894.89 = 107,513.95/x
  3. Step 3: Cross multiply
    183,987.67x = 253,894.89 × 107,513.95
  4. Step 4: Simplify right side
    183,987.67x = 27,297,242,508.72
  5. Step 5: Solve for x
    x = 27,297,242,508.72/183,987.67
  6. Step 6: Final answer
    x = 148,364.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.