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Finding the Fourth Proportional to 216,542.04, 324,809.47 and 64,739.47

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Solution

The fourth proportional to 216,542.04, 324,809.47 and 64,739.47 is: 97,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,542.04 : 324,809.47 = 64,739.47 : x
  2. Step 2: Convert to fraction form
    216,542.04/324,809.47 = 64,739.47/x
  3. Step 3: Cross multiply
    216,542.04x = 324,809.47 × 64,739.47
  4. Step 4: Simplify right side
    216,542.04x = 21,027,992,938.78
  5. Step 5: Solve for x
    x = 21,027,992,938.78/216,542.04
  6. Step 6: Final answer
    x = 97,108.13

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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.