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Finding the Fourth Proportional to 359,419.57, 539,037.09 and 106,640.26

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Solution

The fourth proportional to 359,419.57, 539,037.09 and 106,640.26 is: 159,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,419.57 : 539,037.09 = 106,640.26 : x
  2. Step 2: Convert to fraction form
    359,419.57/539,037.09 = 106,640.26/x
  3. Step 3: Cross multiply
    359,419.57x = 539,037.09 × 106,640.26
  4. Step 4: Simplify right side
    359,419.57x = 57,483,054,079.65
  5. Step 5: Solve for x
    x = 57,483,054,079.65/359,419.57
  6. Step 6: Final answer
    x = 159,933.01

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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.