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Finding the Fourth Proportional to 61,668.39, 85,102.40 and 33,374.08

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Solution

The fourth proportional to 61,668.39, 85,102.40 and 33,374.08 is: 46,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,668.39 : 85,102.40 = 33,374.08 : x
  2. Step 2: Convert to fraction form
    61,668.39/85,102.40 = 33,374.08/x
  3. Step 3: Cross multiply
    61,668.39x = 85,102.40 × 33,374.08
  4. Step 4: Simplify right side
    61,668.39x = 2,840,213,829.18
  5. Step 5: Solve for x
    x = 2,840,213,829.18/61,668.39
  6. Step 6: Final answer
    x = 46,056.24

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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.