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Finding the Fourth Proportional to 61,368.60, 91,880.10 and 59,640.60

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Solution

The fourth proportional to 61,368.60, 91,880.10 and 59,640.60 is: 89,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,368.60 : 91,880.10 = 59,640.60 : x
  2. Step 2: Convert to fraction form
    61,368.60/91,880.10 = 59,640.60/x
  3. Step 3: Cross multiply
    61,368.60x = 91,880.10 × 59,640.60
  4. Step 4: Simplify right side
    61,368.60x = 5,479,784,292.06
  5. Step 5: Solve for x
    x = 5,479,784,292.06/61,368.60
  6. Step 6: Final answer
    x = 89,292.97

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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.