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Finding the Fourth Proportional to 146,697.60, 220,003.20 and 57,921.60

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Solution

The fourth proportional to 146,697.60, 220,003.20 and 57,921.60 is: 86,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,697.60 : 220,003.20 = 57,921.60 : x
  2. Step 2: Convert to fraction form
    146,697.60/220,003.20 = 57,921.60/x
  3. Step 3: Cross multiply
    146,697.60x = 220,003.20 × 57,921.60
  4. Step 4: Simplify right side
    146,697.60x = 12,742,937,349.12
  5. Step 5: Solve for x
    x = 12,742,937,349.12/146,697.60
  6. Step 6: Final answer
    x = 86,865.34

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1.5x scale

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.