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Finding the Fourth Proportional to 99,308.52, 148,987.50 and 29,187.84

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Solution

The fourth proportional to 99,308.52, 148,987.50 and 29,187.84 is: 43,789.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,308.52 : 148,987.50 = 29,187.84 : x
  2. Step 2: Convert to fraction form
    99,308.52/148,987.50 = 29,187.84/x
  3. Step 3: Cross multiply
    99,308.52x = 148,987.50 × 29,187.84
  4. Step 4: Simplify right side
    99,308.52x = 4,348,623,312
  5. Step 5: Solve for x
    x = 4,348,623,312/99,308.52
  6. Step 6: Final answer
    x = 43,789.03

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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.