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Finding the Fourth Proportional to 65,662.78, 97,869.54 and 61,925.74

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Solution

The fourth proportional to 65,662.78, 97,869.54 and 61,925.74 is: 92,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,662.78 : 97,869.54 = 61,925.74 : x
  2. Step 2: Convert to fraction form
    65,662.78/97,869.54 = 61,925.74/x
  3. Step 3: Cross multiply
    65,662.78x = 97,869.54 × 61,925.74
  4. Step 4: Simplify right side
    65,662.78x = 6,060,643,687.96
  5. Step 5: Solve for x
    x = 6,060,643,687.96/65,662.78
  6. Step 6: Final answer
    x = 92,299.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.