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Finding the Fourth Proportional to 122,535.48, 183,672.54 and 69,831.48

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Solution

The fourth proportional to 122,535.48, 183,672.54 and 69,831.48 is: 104,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,535.48 : 183,672.54 = 69,831.48 : x
  2. Step 2: Convert to fraction form
    122,535.48/183,672.54 = 69,831.48/x
  3. Step 3: Cross multiply
    122,535.48x = 183,672.54 × 69,831.48
  4. Step 4: Simplify right side
    122,535.48x = 12,826,125,303.56
  5. Step 5: Solve for x
    x = 12,826,125,303.56/122,535.48
  6. Step 6: Final answer
    x = 104,672.75

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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.