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Finding the Fourth Proportional to 357,012.11, 535,535.96 and 117,104.69

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Solution

The fourth proportional to 357,012.11, 535,535.96 and 117,104.69 is: 175,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,012.11 : 535,535.96 = 117,104.69 : x
  2. Step 2: Convert to fraction form
    357,012.11/535,535.96 = 117,104.69/x
  3. Step 3: Cross multiply
    357,012.11x = 535,535.96 × 117,104.69
  4. Step 4: Simplify right side
    357,012.11x = 62,713,769,316.45
  5. Step 5: Solve for x
    x = 62,713,769,316.45/357,012.11
  6. Step 6: Final answer
    x = 175,662.87

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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.