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Finding the Fourth Proportional to 114,834.33, 171,592.74 and 87,666.32

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Solution

The fourth proportional to 114,834.33, 171,592.74 and 87,666.32 is: 130,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,834.33 : 171,592.74 = 87,666.32 : x
  2. Step 2: Convert to fraction form
    114,834.33/171,592.74 = 87,666.32/x
  3. Step 3: Cross multiply
    114,834.33x = 171,592.74 × 87,666.32
  4. Step 4: Simplify right side
    114,834.33x = 15,042,904,483.50
  5. Step 5: Solve for x
    x = 15,042,904,483.50/114,834.33
  6. Step 6: Final answer
    x = 130,996.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.