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Finding the Fourth Proportional to 359,019.81, 538,629.62 and 156,633.62

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Solution

The fourth proportional to 359,019.81, 538,629.62 and 156,633.62 is: 234,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,019.81 : 538,629.62 = 156,633.62 : x
  2. Step 2: Convert to fraction form
    359,019.81/538,629.62 = 156,633.62/x
  3. Step 3: Cross multiply
    359,019.81x = 538,629.62 × 156,633.62
  4. Step 4: Simplify right side
    359,019.81x = 84,367,503,743.51
  5. Step 5: Solve for x
    x = 84,367,503,743.51/359,019.81
  6. Step 6: Final answer
    x = 234,994.01

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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.