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Finding the Fourth Proportional to 237,320.32, 355,971.12 and 87,495.84

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Solution

The fourth proportional to 237,320.32, 355,971.12 and 87,495.84 is: 131,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,320.32 : 355,971.12 = 87,495.84 : x
  2. Step 2: Convert to fraction form
    237,320.32/355,971.12 = 87,495.84/x
  3. Step 3: Cross multiply
    237,320.32x = 355,971.12 × 87,495.84
  4. Step 4: Simplify right side
    237,320.32x = 31,145,992,160.14
  5. Step 5: Solve for x
    x = 31,145,992,160.14/237,320.32
  6. Step 6: Final answer
    x = 131,240.31

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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.