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Finding the Fourth Proportional to 111,457.67, 153,822.39 and 63,701.92

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Solution

The fourth proportional to 111,457.67, 153,822.39 and 63,701.92 is: 87,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,457.67 : 153,822.39 = 63,701.92 : x
  2. Step 2: Convert to fraction form
    111,457.67/153,822.39 = 63,701.92/x
  3. Step 3: Cross multiply
    111,457.67x = 153,822.39 × 63,701.92
  4. Step 4: Simplify right side
    111,457.67x = 9,798,780,812.88
  5. Step 5: Solve for x
    x = 9,798,780,812.88/111,457.67
  6. Step 6: Final answer
    x = 87,914.82

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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.