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Finding the Fourth Proportional to 61,302.84, 91,905.37 and 56,382.36

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Solution

The fourth proportional to 61,302.84, 91,905.37 and 56,382.36 is: 84,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,302.84 : 91,905.37 = 56,382.36 : x
  2. Step 2: Convert to fraction form
    61,302.84/91,905.37 = 56,382.36/x
  3. Step 3: Cross multiply
    61,302.84x = 91,905.37 × 56,382.36
  4. Step 4: Simplify right side
    61,302.84x = 5,181,841,657.27
  5. Step 5: Solve for x
    x = 5,181,841,657.27/61,302.84
  6. Step 6: Final answer
    x = 84,528.57

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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.