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Finding the Fourth Proportional to 128,622.02, 192,933.02 and 53,701.37

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Solution

The fourth proportional to 128,622.02, 192,933.02 and 53,701.37 is: 80,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,622.02 : 192,933.02 = 53,701.37 : x
  2. Step 2: Convert to fraction form
    128,622.02/192,933.02 = 53,701.37/x
  3. Step 3: Cross multiply
    128,622.02x = 192,933.02 × 53,701.37
  4. Step 4: Simplify right side
    128,622.02x = 10,360,767,385.32
  5. Step 5: Solve for x
    x = 10,360,767,385.32/128,622.02
  6. Step 6: Final answer
    x = 80,552.05

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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.