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Finding the Fourth Proportional to 261,970.02, 392,626.14 and 112,033.92

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Solution

The fourth proportional to 261,970.02, 392,626.14 and 112,033.92 is: 167,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,970.02 : 392,626.14 = 112,033.92 : x
  2. Step 2: Convert to fraction form
    261,970.02/392,626.14 = 112,033.92/x
  3. Step 3: Cross multiply
    261,970.02x = 392,626.14 × 112,033.92
  4. Step 4: Simplify right side
    261,970.02x = 43,987,445,558.67
  5. Step 5: Solve for x
    x = 43,987,445,558.67/261,970.02
  6. Step 6: Final answer
    x = 167,910.23

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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.