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Finding the Fourth Proportional to 255,211.68, 352,212.46 and 147,783.61

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Solution

The fourth proportional to 255,211.68, 352,212.46 and 147,783.61 is: 203,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,211.68 : 352,212.46 = 147,783.61 : x
  2. Step 2: Convert to fraction form
    255,211.68/352,212.46 = 147,783.61/x
  3. Step 3: Cross multiply
    255,211.68x = 352,212.46 × 147,783.61
  4. Step 4: Simplify right side
    255,211.68x = 52,051,228,825.78
  5. Step 5: Solve for x
    x = 52,051,228,825.78/255,211.68
  6. Step 6: Final answer
    x = 203,953.16

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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.