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Finding the Fourth Proportional to 117,007.50, 161,470.77 and 63,292.77

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Solution

The fourth proportional to 117,007.50, 161,470.77 and 63,292.77 is: 87,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.50 : 161,470.77 = 63,292.77 : x
  2. Step 2: Convert to fraction form
    117,007.50/161,470.77 = 63,292.77/x
  3. Step 3: Cross multiply
    117,007.50x = 161,470.77 × 63,292.77
  4. Step 4: Simplify right side
    117,007.50x = 10,219,932,307.33
  5. Step 5: Solve for x
    x = 10,219,932,307.33/117,007.50
  6. Step 6: Final answer
    x = 87,344.25

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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.