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Finding the Fourth Proportional to 61,068.52, 84,268.92 and 34,212.16

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Solution

The fourth proportional to 61,068.52, 84,268.92 and 34,212.16 is: 47,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,068.52 : 84,268.92 = 34,212.16 : x
  2. Step 2: Convert to fraction form
    61,068.52/84,268.92 = 34,212.16/x
  3. Step 3: Cross multiply
    61,068.52x = 84,268.92 × 34,212.16
  4. Step 4: Simplify right side
    61,068.52x = 2,883,021,774.07
  5. Step 5: Solve for x
    x = 2,883,021,774.07/61,068.52
  6. Step 6: Final answer
    x = 47,209.62

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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.