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Finding the Fourth Proportional to 136,718.19, 205,076.01 and 43,223.95

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Solution

The fourth proportional to 136,718.19, 205,076.01 and 43,223.95 is: 64,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,718.19 : 205,076.01 = 43,223.95 : x
  2. Step 2: Convert to fraction form
    136,718.19/205,076.01 = 43,223.95/x
  3. Step 3: Cross multiply
    136,718.19x = 205,076.01 × 43,223.95
  4. Step 4: Simplify right side
    136,718.19x = 8,864,194,986.32
  5. Step 5: Solve for x
    x = 8,864,194,986.32/136,718.19
  6. Step 6: Final answer
    x = 64,835.52

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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.