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Finding the Fourth Proportional to 359,284.71, 538,778.79 and 122,646.45

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Solution

The fourth proportional to 359,284.71, 538,778.79 and 122,646.45 is: 183,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,284.71 : 538,778.79 = 122,646.45 : x
  2. Step 2: Convert to fraction form
    359,284.71/538,778.79 = 122,646.45/x
  3. Step 3: Cross multiply
    359,284.71x = 538,778.79 × 122,646.45
  4. Step 4: Simplify right side
    359,284.71x = 66,079,305,928.80
  5. Step 5: Solve for x
    x = 66,079,305,928.80/359,284.71
  6. Step 6: Final answer
    x = 183,919.06

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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.