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Finding the Fourth Proportional to 88,573.50, 122,231.43 and 56,742.40

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Solution

The fourth proportional to 88,573.50, 122,231.43 and 56,742.40 is: 78,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573.50 : 122,231.43 = 56,742.40 : x
  2. Step 2: Convert to fraction form
    88,573.50/122,231.43 = 56,742.40/x
  3. Step 3: Cross multiply
    88,573.50x = 122,231.43 × 56,742.40
  4. Step 4: Simplify right side
    88,573.50x = 6,935,704,502.65
  5. Step 5: Solve for x
    x = 6,935,704,502.65/88,573.50
  6. Step 6: Final answer
    x = 78,304.51

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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.