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Finding the Fourth Proportional to 72,373.48, 99,936.58 and 54,437.24

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Solution

The fourth proportional to 72,373.48, 99,936.58 and 54,437.24 is: 75,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.48 : 99,936.58 = 54,437.24 : x
  2. Step 2: Convert to fraction form
    72,373.48/99,936.58 = 54,437.24/x
  3. Step 3: Cross multiply
    72,373.48x = 99,936.58 × 54,437.24
  4. Step 4: Simplify right side
    72,373.48x = 5,440,271,590.24
  5. Step 5: Solve for x
    x = 5,440,271,590.24/72,373.48
  6. Step 6: Final answer
    x = 75,169.41

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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.