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Finding the Fourth Proportional to 88,671, 122,348.05 and 56,418.42

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Solution

The fourth proportional to 88,671, 122,348.05 and 56,418.42 is: 77,846.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,671 : 122,348.05 = 56,418.42 : x
  2. Step 2: Convert to fraction form
    88,671/122,348.05 = 56,418.42/x
  3. Step 3: Cross multiply
    88,671x = 122,348.05 × 56,418.42
  4. Step 4: Simplify right side
    88,671x = 6,902,683,671.08
  5. Step 5: Solve for x
    x = 6,902,683,671.08/88,671
  6. Step 6: Final answer
    x = 77,846.01

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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.