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Finding the Fourth Proportional to 224,407.12, 336,352.14 and 91,141

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Solution

The fourth proportional to 224,407.12, 336,352.14 and 91,141 is: 136,606.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,407.12 : 336,352.14 = 91,141 : x
  2. Step 2: Convert to fraction form
    224,407.12/336,352.14 = 91,141/x
  3. Step 3: Cross multiply
    224,407.12x = 336,352.14 × 91,141
  4. Step 4: Simplify right side
    224,407.12x = 30,655,470,391.74
  5. Step 5: Solve for x
    x = 30,655,470,391.74/224,407.12
  6. Step 6: Final answer
    x = 136,606.50

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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.