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Finding the Fourth Proportional to 117,704.70, 176,326.65 and 70,818.30

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Solution

The fourth proportional to 117,704.70, 176,326.65 and 70,818.30 is: 106,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,704.70 : 176,326.65 = 70,818.30 : x
  2. Step 2: Convert to fraction form
    117,704.70/176,326.65 = 70,818.30/x
  3. Step 3: Cross multiply
    117,704.70x = 176,326.65 × 70,818.30
  4. Step 4: Simplify right side
    117,704.70x = 12,487,153,597.70
  5. Step 5: Solve for x
    x = 12,487,153,597.70/117,704.70
  6. Step 6: Final answer
    x = 106,088.83

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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.