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Finding the Fourth Proportional to 72,907.52, 100,614.24 and 41,077.60

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Solution

The fourth proportional to 72,907.52, 100,614.24 and 41,077.60 is: 56,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,907.52 : 100,614.24 = 41,077.60 : x
  2. Step 2: Convert to fraction form
    72,907.52/100,614.24 = 41,077.60/x
  3. Step 3: Cross multiply
    72,907.52x = 100,614.24 × 41,077.60
  4. Step 4: Simplify right side
    72,907.52x = 4,132,991,505.02
  5. Step 5: Solve for x
    x = 4,132,991,505.02/72,907.52
  6. Step 6: Final answer
    x = 56,688.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.