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Finding the Fourth Proportional to 151,710.15, 212,000.55 and 151,710.15

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Solution

The fourth proportional to 151,710.15, 212,000.55 and 151,710.15 is: 212,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,710.15 : 212,000.55 = 151,710.15 : x
  2. Step 2: Convert to fraction form
    151,710.15/212,000.55 = 151,710.15/x
  3. Step 3: Cross multiply
    151,710.15x = 212,000.55 × 151,710.15
  4. Step 4: Simplify right side
    151,710.15x = 32,162,635,240.58
  5. Step 5: Solve for x
    x = 32,162,635,240.58/151,710.15
  6. Step 6: Final answer
    x = 212,000.55

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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.