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Finding the Fourth Proportional to 88,924.80, 122,731.20 and 53,142.40

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Solution

The fourth proportional to 88,924.80, 122,731.20 and 53,142.40 is: 73,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,924.80 : 122,731.20 = 53,142.40 : x
  2. Step 2: Convert to fraction form
    88,924.80/122,731.20 = 53,142.40/x
  3. Step 3: Cross multiply
    88,924.80x = 122,731.20 × 53,142.40
  4. Step 4: Simplify right side
    88,924.80x = 6,522,230,522.88
  5. Step 5: Solve for x
    x = 6,522,230,522.88/88,924.80
  6. Step 6: Final answer
    x = 73,345.46

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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.