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Finding the Fourth Proportional to 132,762.81, 183,211.67 and 72,333.27

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Solution

The fourth proportional to 132,762.81, 183,211.67 and 72,333.27 is: 99,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,762.81 : 183,211.67 = 72,333.27 : x
  2. Step 2: Convert to fraction form
    132,762.81/183,211.67 = 72,333.27/x
  3. Step 3: Cross multiply
    132,762.81x = 183,211.67 × 72,333.27
  4. Step 4: Simplify right side
    132,762.81x = 13,252,298,831.59
  5. Step 5: Solve for x
    x = 13,252,298,831.59/132,762.81
  6. Step 6: Final answer
    x = 99,819.36

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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.