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Finding the Fourth Proportional to 72,934.80, 109,402.20 and 50,701.20

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Solution

The fourth proportional to 72,934.80, 109,402.20 and 50,701.20 is: 76,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,934.80 : 109,402.20 = 50,701.20 : x
  2. Step 2: Convert to fraction form
    72,934.80/109,402.20 = 50,701.20/x
  3. Step 3: Cross multiply
    72,934.80x = 109,402.20 × 50,701.20
  4. Step 4: Simplify right side
    72,934.80x = 5,546,822,822.64
  5. Step 5: Solve for x
    x = 5,546,822,822.64/72,934.80
  6. Step 6: Final answer
    x = 76,051.80

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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.