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Finding the Fourth Proportional to 255,999.64, 353,278.92 and 148,632.52

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Solution

The fourth proportional to 255,999.64, 353,278.92 and 148,632.52 is: 205,112.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,999.64 : 353,278.92 = 148,632.52 : x
  2. Step 2: Convert to fraction form
    255,999.64/353,278.92 = 148,632.52/x
  3. Step 3: Cross multiply
    255,999.64x = 353,278.92 × 148,632.52
  4. Step 4: Simplify right side
    255,999.64x = 52,508,736,142.48
  5. Step 5: Solve for x
    x = 52,508,736,142.48/255,999.64
  6. Step 6: Final answer
    x = 205,112.54

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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.