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Finding the Fourth Proportional to 72,151.48, 108,237.42 and 22,235.64

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Solution

The fourth proportional to 72,151.48, 108,237.42 and 22,235.64 is: 33,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,151.48 : 108,237.42 = 22,235.64 : x
  2. Step 2: Convert to fraction form
    72,151.48/108,237.42 = 22,235.64/x
  3. Step 3: Cross multiply
    72,151.48x = 108,237.42 × 22,235.64
  4. Step 4: Simplify right side
    72,151.48x = 2,406,728,305.65
  5. Step 5: Solve for x
    x = 2,406,728,305.65/72,151.48
  6. Step 6: Final answer
    x = 33,356.60

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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.