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Finding the Fourth Proportional to 64,210.82, 88,635.77 and 57,484.77

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Solution

The fourth proportional to 64,210.82, 88,635.77 and 57,484.77 is: 79,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,210.82 : 88,635.77 = 57,484.77 : x
  2. Step 2: Convert to fraction form
    64,210.82/88,635.77 = 57,484.77/x
  3. Step 3: Cross multiply
    64,210.82x = 88,635.77 × 57,484.77
  4. Step 4: Simplify right side
    64,210.82x = 5,095,206,946.56
  5. Step 5: Solve for x
    x = 5,095,206,946.56/64,210.82
  6. Step 6: Final answer
    x = 79,351.22

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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.