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Finding the Fourth Proportional to 110,509.86, 165,671.07 and 39,411.09

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Solution

The fourth proportional to 110,509.86, 165,671.07 and 39,411.09 is: 59,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,509.86 : 165,671.07 = 39,411.09 : x
  2. Step 2: Convert to fraction form
    110,509.86/165,671.07 = 39,411.09/x
  3. Step 3: Cross multiply
    110,509.86x = 165,671.07 × 39,411.09
  4. Step 4: Simplify right side
    110,509.86x = 6,529,277,450.17
  5. Step 5: Solve for x
    x = 6,529,277,450.17/110,509.86
  6. Step 6: Final answer
    x = 59,083.21

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1.5x scale

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.