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Finding the Fourth Proportional to 159,887.09, 239,746.32 and 141,675.71

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Solution

The fourth proportional to 159,887.09, 239,746.32 and 141,675.71 is: 212,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,887.09 : 239,746.32 = 141,675.71 : x
  2. Step 2: Convert to fraction form
    159,887.09/239,746.32 = 141,675.71/x
  3. Step 3: Cross multiply
    159,887.09x = 239,746.32 × 141,675.71
  4. Step 4: Simplify right side
    159,887.09x = 33,966,228,907.16
  5. Step 5: Solve for x
    x = 33,966,228,907.16/159,887.09
  6. Step 6: Final answer
    x = 212,438.85

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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.