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Finding the Fourth Proportional to 255,899.42, 353,139.22 and 141,182.89

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Solution

The fourth proportional to 255,899.42, 353,139.22 and 141,182.89 is: 194,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,899.42 : 353,139.22 = 141,182.89 : x
  2. Step 2: Convert to fraction form
    255,899.42/353,139.22 = 141,182.89/x
  3. Step 3: Cross multiply
    255,899.42x = 353,139.22 × 141,182.89
  4. Step 4: Simplify right side
    255,899.42x = 49,857,217,240.94
  5. Step 5: Solve for x
    x = 49,857,217,240.94/255,899.42
  6. Step 6: Final answer
    x = 194,831.31

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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.