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Finding the Fourth Proportional to 72,155.01, 108,243.27 and 22,230.93

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Solution

The fourth proportional to 72,155.01, 108,243.27 and 22,230.93 is: 33,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,155.01 : 108,243.27 = 22,230.93 : x
  2. Step 2: Convert to fraction form
    72,155.01/108,243.27 = 22,230.93/x
  3. Step 3: Cross multiply
    72,155.01x = 108,243.27 × 22,230.93
  4. Step 4: Simplify right side
    72,155.01x = 2,406,347,905.97
  5. Step 5: Solve for x
    x = 2,406,347,905.97/72,155.01
  6. Step 6: Final answer
    x = 33,349.70

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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.