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Finding the Fourth Proportional to 115,005.20, 172,405.20 and 44,868.20

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Solution

The fourth proportional to 115,005.20, 172,405.20 and 44,868.20 is: 67,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,005.20 : 172,405.20 = 44,868.20 : x
  2. Step 2: Convert to fraction form
    115,005.20/172,405.20 = 44,868.20/x
  3. Step 3: Cross multiply
    115,005.20x = 172,405.20 × 44,868.20
  4. Step 4: Simplify right side
    115,005.20x = 7,735,510,994.64
  5. Step 5: Solve for x
    x = 7,735,510,994.64/115,005.20
  6. Step 6: Final answer
    x = 67,262.27

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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.