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Finding the Fourth Proportional to 215,041.86, 322,526.38 and 65,246.02

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Solution

The fourth proportional to 215,041.86, 322,526.38 and 65,246.02 is: 97,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,041.86 : 322,526.38 = 65,246.02 : x
  2. Step 2: Convert to fraction form
    215,041.86/322,526.38 = 65,246.02/x
  3. Step 3: Cross multiply
    215,041.86x = 322,526.38 × 65,246.02
  4. Step 4: Simplify right side
    215,041.86x = 21,043,562,640.01
  5. Step 5: Solve for x
    x = 21,043,562,640.01/215,041.86
  6. Step 6: Final answer
    x = 97,857.98

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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.