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Finding the Fourth Proportional to 255,574.63, 352,695.38 and 140,857.48

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Solution

The fourth proportional to 255,574.63, 352,695.38 and 140,857.48 is: 194,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,574.63 : 352,695.38 = 140,857.48 : x
  2. Step 2: Convert to fraction form
    255,574.63/352,695.38 = 140,857.48/x
  3. Step 3: Cross multiply
    255,574.63x = 352,695.38 × 140,857.48
  4. Step 4: Simplify right side
    255,574.63x = 49,679,782,434.44
  5. Step 5: Solve for x
    x = 49,679,782,434.44/255,574.63
  6. Step 6: Final answer
    x = 194,384.64

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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.