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Finding the Fourth Proportional to 255,807.56, 353,016.78 and 141,090.68

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Solution

The fourth proportional to 255,807.56, 353,016.78 and 141,090.68 is: 194,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,807.56 : 353,016.78 = 141,090.68 : x
  2. Step 2: Convert to fraction form
    255,807.56/353,016.78 = 141,090.68/x
  3. Step 3: Cross multiply
    255,807.56x = 353,016.78 × 141,090.68
  4. Step 4: Simplify right side
    255,807.56x = 49,807,377,541.61
  5. Step 5: Solve for x
    x = 49,807,377,541.61/255,807.56
  6. Step 6: Final answer
    x = 194,706.43

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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.