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Finding the Fourth Proportional to 88,635, 122,247.12 and 56,806.92

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Solution

The fourth proportional to 88,635, 122,247.12 and 56,806.92 is: 78,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,635 : 122,247.12 = 56,806.92 : x
  2. Step 2: Convert to fraction form
    88,635/122,247.12 = 56,806.92/x
  3. Step 3: Cross multiply
    88,635x = 122,247.12 × 56,806.92
  4. Step 4: Simplify right side
    88,635x = 6,944,482,366.07
  5. Step 5: Solve for x
    x = 6,944,482,366.07/88,635
  6. Step 6: Final answer
    x = 78,349.21

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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.