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Finding the Fourth Proportional to 220,970.53, 304,941.41 and 125,479.36

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Solution

The fourth proportional to 220,970.53, 304,941.41 and 125,479.36 is: 173,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,970.53 : 304,941.41 = 125,479.36 : x
  2. Step 2: Convert to fraction form
    220,970.53/304,941.41 = 125,479.36/x
  3. Step 3: Cross multiply
    220,970.53x = 304,941.41 × 125,479.36
  4. Step 4: Simplify right side
    220,970.53x = 38,263,852,964.30
  5. Step 5: Solve for x
    x = 38,263,852,964.30/220,970.53
  6. Step 6: Final answer
    x = 173,162.70

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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.