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Finding the Fourth Proportional to 151,743.90, 212,047.80 and 151,743.90

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Solution

The fourth proportional to 151,743.90, 212,047.80 and 151,743.90 is: 212,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,743.90 : 212,047.80 = 151,743.90 : x
  2. Step 2: Convert to fraction form
    151,743.90/212,047.80 = 151,743.90/x
  3. Step 3: Cross multiply
    151,743.90x = 212,047.80 × 151,743.90
  4. Step 4: Simplify right side
    151,743.90x = 32,176,960,158.42
  5. Step 5: Solve for x
    x = 32,176,960,158.42/151,743.90
  6. Step 6: Final answer
    x = 212,047.80

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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.