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Finding the Fourth Proportional to 317,379.16, 476,147.45 and 157,530.12

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Solution

The fourth proportional to 317,379.16, 476,147.45 and 157,530.12 is: 236,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,379.16 : 476,147.45 = 157,530.12 : x
  2. Step 2: Convert to fraction form
    317,379.16/476,147.45 = 157,530.12/x
  3. Step 3: Cross multiply
    317,379.16x = 476,147.45 × 157,530.12
  4. Step 4: Simplify right side
    317,379.16x = 75,007,564,936.19
  5. Step 5: Solve for x
    x = 75,007,564,936.19/317,379.16
  6. Step 6: Final answer
    x = 236,334.25

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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.