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Finding the Fourth Proportional to 101,166.60, 151,749.90 and 31,036.80

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Solution

The fourth proportional to 101,166.60, 151,749.90 and 31,036.80 is: 46,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,166.60 : 151,749.90 = 31,036.80 : x
  2. Step 2: Convert to fraction form
    101,166.60/151,749.90 = 31,036.80/x
  3. Step 3: Cross multiply
    101,166.60x = 151,749.90 × 31,036.80
  4. Step 4: Simplify right side
    101,166.60x = 4,709,831,296.32
  5. Step 5: Solve for x
    x = 4,709,831,296.32/101,166.60
  6. Step 6: Final answer
    x = 46,555.20

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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.