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Finding the Fourth Proportional to 64,346.69, 96,630.75 and 61,578.77

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Solution

The fourth proportional to 64,346.69, 96,630.75 and 61,578.77 is: 92,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,346.69 : 96,630.75 = 61,578.77 : x
  2. Step 2: Convert to fraction form
    64,346.69/96,630.75 = 61,578.77/x
  3. Step 3: Cross multiply
    64,346.69x = 96,630.75 × 61,578.77
  4. Step 4: Simplify right side
    64,346.69x = 5,950,402,246.02
  5. Step 5: Solve for x
    x = 5,950,402,246.02/64,346.69
  6. Step 6: Final answer
    x = 92,474.10

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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.