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Finding the Fourth Proportional to 67,901.60, 93,715.44 and 39,607.26

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Solution

The fourth proportional to 67,901.60, 93,715.44 and 39,607.26 is: 54,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,901.60 : 93,715.44 = 39,607.26 : x
  2. Step 2: Convert to fraction form
    67,901.60/93,715.44 = 39,607.26/x
  3. Step 3: Cross multiply
    67,901.60x = 93,715.44 × 39,607.26
  4. Step 4: Simplify right side
    67,901.60x = 3,711,811,798.09
  5. Step 5: Solve for x
    x = 3,711,811,798.09/67,901.60
  6. Step 6: Final answer
    x = 54,664.57

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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.