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Finding the Fourth Proportional to 61,431.48, 92,066.76 and 59,886

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Solution

The fourth proportional to 61,431.48, 92,066.76 and 59,886 is: 89,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431.48 : 92,066.76 = 59,886 : x
  2. Step 2: Convert to fraction form
    61,431.48/92,066.76 = 59,886/x
  3. Step 3: Cross multiply
    61,431.48x = 92,066.76 × 59,886
  4. Step 4: Simplify right side
    61,431.48x = 5,513,509,989.36
  5. Step 5: Solve for x
    x = 5,513,509,989.36/61,431.48
  6. Step 6: Final answer
    x = 89,750.56

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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.