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Finding the Fourth Proportional to 525,722.56, 788,601.60 and 146,652.57

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Solution

The fourth proportional to 525,722.56, 788,601.60 and 146,652.57 is: 219,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,722.56 : 788,601.60 = 146,652.57 : x
  2. Step 2: Convert to fraction form
    525,722.56/788,601.60 = 146,652.57/x
  3. Step 3: Cross multiply
    525,722.56x = 788,601.60 × 146,652.57
  4. Step 4: Simplify right side
    525,722.56x = 115,650,451,346.11
  5. Step 5: Solve for x
    x = 115,650,451,346.11/525,722.56
  6. Step 6: Final answer
    x = 219,983.81

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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.