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Finding the Fourth Proportional to 359,359.10, 538,921.98 and 119,408.58

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Solution

The fourth proportional to 359,359.10, 538,921.98 and 119,408.58 is: 179,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,359.10 : 538,921.98 = 119,408.58 : x
  2. Step 2: Convert to fraction form
    359,359.10/538,921.98 = 119,408.58/x
  3. Step 3: Cross multiply
    359,359.10x = 538,921.98 × 119,408.58
  4. Step 4: Simplify right side
    359,359.10x = 64,351,908,362.59
  5. Step 5: Solve for x
    x = 64,351,908,362.59/359,359.10
  6. Step 6: Final answer
    x = 179,074.10

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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.