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Finding the Fourth Proportional to 115,256, 172,884 and 37,432

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Solution

The fourth proportional to 115,256, 172,884 and 37,432 is: 56,148

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,256 : 172,884 = 37,432 : x
  2. Step 2: Convert to fraction form
    115,256/172,884 = 37,432/x
  3. Step 3: Cross multiply
    115,256x = 172,884 × 37,432
  4. Step 4: Simplify right side
    115,256x = 6,471,393,888
  5. Step 5: Solve for x
    x = 6,471,393,888/115,256
  6. Step 6: Final answer
    x = 56,148

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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.