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Finding the Fourth Proportional to 255,092.60, 382,811.70 and 166,129.40

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Solution

The fourth proportional to 255,092.60, 382,811.70 and 166,129.40 is: 249,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,092.60 : 382,811.70 = 166,129.40 : x
  2. Step 2: Convert to fraction form
    255,092.60/382,811.70 = 166,129.40/x
  3. Step 3: Cross multiply
    255,092.60x = 382,811.70 × 166,129.40
  4. Step 4: Simplify right side
    255,092.60x = 63,596,278,033.98
  5. Step 5: Solve for x
    x = 63,596,278,033.98/255,092.60
  6. Step 6: Final answer
    x = 249,306.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.