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Finding the Fourth Proportional to 117,700.20, 176,550.30 and 42,904.80

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Solution

The fourth proportional to 117,700.20, 176,550.30 and 42,904.80 is: 64,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,700.20 : 176,550.30 = 42,904.80 : x
  2. Step 2: Convert to fraction form
    117,700.20/176,550.30 = 42,904.80/x
  3. Step 3: Cross multiply
    117,700.20x = 176,550.30 × 42,904.80
  4. Step 4: Simplify right side
    117,700.20x = 7,574,855,311.44
  5. Step 5: Solve for x
    x = 7,574,855,311.44/117,700.20
  6. Step 6: Final answer
    x = 64,357.20

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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.