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Finding the Fourth Proportional to 151,766.90, 212,784.70 and 151,766.90

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Solution

The fourth proportional to 151,766.90, 212,784.70 and 151,766.90 is: 212,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,766.90 : 212,784.70 = 151,766.90 : x
  2. Step 2: Convert to fraction form
    151,766.90/212,784.70 = 151,766.90/x
  3. Step 3: Cross multiply
    151,766.90x = 212,784.70 × 151,766.90
  4. Step 4: Simplify right side
    151,766.90x = 32,293,674,286.43
  5. Step 5: Solve for x
    x = 32,293,674,286.43/151,766.90
  6. Step 6: Final answer
    x = 212,784.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.