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Finding the Fourth Proportional to 57,502.20, 86,253.30 and 53,225.40

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Solution

The fourth proportional to 57,502.20, 86,253.30 and 53,225.40 is: 79,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,502.20 : 86,253.30 = 53,225.40 : x
  2. Step 2: Convert to fraction form
    57,502.20/86,253.30 = 53,225.40/x
  3. Step 3: Cross multiply
    57,502.20x = 86,253.30 × 53,225.40
  4. Step 4: Simplify right side
    57,502.20x = 4,590,866,393.82
  5. Step 5: Solve for x
    x = 4,590,866,393.82/57,502.20
  6. Step 6: Final answer
    x = 79,838.10

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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.