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Finding the Fourth Proportional to 111,718.68, 167,483.54 and 48,491.28

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Solution

The fourth proportional to 111,718.68, 167,483.54 and 48,491.28 is: 72,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,718.68 : 167,483.54 = 48,491.28 : x
  2. Step 2: Convert to fraction form
    111,718.68/167,483.54 = 48,491.28/x
  3. Step 3: Cross multiply
    111,718.68x = 167,483.54 × 48,491.28
  4. Step 4: Simplify right side
    111,718.68x = 8,121,490,991.07
  5. Step 5: Solve for x
    x = 8,121,490,991.07/111,718.68
  6. Step 6: Final answer
    x = 72,695.91

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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.