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Finding the Fourth Proportional to 111,362.60, 166,970.10 and 61,466.60

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Solution

The fourth proportional to 111,362.60, 166,970.10 and 61,466.60 is: 92,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,362.60 : 166,970.10 = 61,466.60 : x
  2. Step 2: Convert to fraction form
    111,362.60/166,970.10 = 61,466.60/x
  3. Step 3: Cross multiply
    111,362.60x = 166,970.10 × 61,466.60
  4. Step 4: Simplify right side
    111,362.60x = 10,263,084,348.66
  5. Step 5: Solve for x
    x = 10,263,084,348.66/111,362.60
  6. Step 6: Final answer
    x = 92,159.17

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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.