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Finding the Fourth Proportional to 117,644.60, 176,207.70 and 82,393.40

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Solution

The fourth proportional to 117,644.60, 176,207.70 and 82,393.40 is: 123,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,644.60 : 176,207.70 = 82,393.40 : x
  2. Step 2: Convert to fraction form
    117,644.60/176,207.70 = 82,393.40/x
  3. Step 3: Cross multiply
    117,644.60x = 176,207.70 × 82,393.40
  4. Step 4: Simplify right side
    117,644.60x = 14,518,351,509.18
  5. Step 5: Solve for x
    x = 14,518,351,509.18/117,644.60
  6. Step 6: Final answer
    x = 123,408.57

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1.5x scale

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.