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Finding the Fourth Proportional to 359,706.64, 539,559.60 and 106,986.12

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Solution

The fourth proportional to 359,706.64, 539,559.60 and 106,986.12 is: 160,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,706.64 : 539,559.60 = 106,986.12 : x
  2. Step 2: Convert to fraction form
    359,706.64/539,559.60 = 106,986.12/x
  3. Step 3: Cross multiply
    359,706.64x = 539,559.60 × 106,986.12
  4. Step 4: Simplify right side
    359,706.64x = 57,725,388,112.75
  5. Step 5: Solve for x
    x = 57,725,388,112.75/359,706.64
  6. Step 6: Final answer
    x = 160,479.07

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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.