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Finding the Fourth Proportional to 111,234, 153,513.93 and 63,494.54

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Solution

The fourth proportional to 111,234, 153,513.93 and 63,494.54 is: 87,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,234 : 153,513.93 = 63,494.54 : x
  2. Step 2: Convert to fraction form
    111,234/153,513.93 = 63,494.54/x
  3. Step 3: Cross multiply
    111,234x = 153,513.93 × 63,494.54
  4. Step 4: Simplify right side
    111,234x = 9,747,296,368.94
  5. Step 5: Solve for x
    x = 9,747,296,368.94/111,234
  6. Step 6: Final answer
    x = 87,628.75

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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.