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Finding the Fourth Proportional to 144,714.95, 216,956.51 and 68,775.37

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Solution

The fourth proportional to 144,714.95, 216,956.51 and 68,775.37 is: 103,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,714.95 : 216,956.51 = 68,775.37 : x
  2. Step 2: Convert to fraction form
    144,714.95/216,956.51 = 68,775.37/x
  3. Step 3: Cross multiply
    144,714.95x = 216,956.51 × 68,775.37
  4. Step 4: Simplify right side
    144,714.95x = 14,921,263,362.89
  5. Step 5: Solve for x
    x = 14,921,263,362.89/144,714.95
  6. Step 6: Final answer
    x = 103,107.96

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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.