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Finding the Fourth Proportional to 88,350.48, 121,857.48 and 61,494.48

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Solution

The fourth proportional to 88,350.48, 121,857.48 and 61,494.48 is: 84,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,350.48 : 121,857.48 = 61,494.48 : x
  2. Step 2: Convert to fraction form
    88,350.48/121,857.48 = 61,494.48/x
  3. Step 3: Cross multiply
    88,350.48x = 121,857.48 × 61,494.48
  4. Step 4: Simplify right side
    88,350.48x = 7,493,562,366.71
  5. Step 5: Solve for x
    x = 7,493,562,366.71/88,350.48
  6. Step 6: Final answer
    x = 84,816.32

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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.