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Finding the Fourth Proportional to 111,457.68, 153,811.54 and 60,470.44

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Solution

The fourth proportional to 111,457.68, 153,811.54 and 60,470.44 is: 83,449.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,457.68 : 153,811.54 = 60,470.44 : x
  2. Step 2: Convert to fraction form
    111,457.68/153,811.54 = 60,470.44/x
  3. Step 3: Cross multiply
    111,457.68x = 153,811.54 × 60,470.44
  4. Step 4: Simplify right side
    111,457.68x = 9,301,051,500.88
  5. Step 5: Solve for x
    x = 9,301,051,500.88/111,457.68
  6. Step 6: Final answer
    x = 83,449.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.