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Finding the Fourth Proportional to 113,009, 155,952 and 62,022.60

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Solution

The fourth proportional to 113,009, 155,952 and 62,022.60 is: 85,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,009 : 155,952 = 62,022.60 : x
  2. Step 2: Convert to fraction form
    113,009/155,952 = 62,022.60/x
  3. Step 3: Cross multiply
    113,009x = 155,952 × 62,022.60
  4. Step 4: Simplify right side
    113,009x = 9,672,548,515.20
  5. Step 5: Solve for x
    x = 9,672,548,515.20/113,009
  6. Step 6: Final answer
    x = 85,590.96

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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.