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Finding the Fourth Proportional to 255,919.08, 353,053.68 and 148,426.56

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Solution

The fourth proportional to 255,919.08, 353,053.68 and 148,426.56 is: 204,762.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,919.08 : 353,053.68 = 148,426.56 : x
  2. Step 2: Convert to fraction form
    255,919.08/353,053.68 = 148,426.56/x
  3. Step 3: Cross multiply
    255,919.08x = 353,053.68 × 148,426.56
  4. Step 4: Simplify right side
    255,919.08x = 52,402,543,217.74
  5. Step 5: Solve for x
    x = 52,402,543,217.74/255,919.08
  6. Step 6: Final answer
    x = 204,762.16

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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.