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Finding the Fourth Proportional to 151,743.40, 212,047.10 and 151,743.40

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Solution

The fourth proportional to 151,743.40, 212,047.10 and 151,743.40 is: 212,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,743.40 : 212,047.10 = 151,743.40 : x
  2. Step 2: Convert to fraction form
    151,743.40/212,047.10 = 151,743.40/x
  3. Step 3: Cross multiply
    151,743.40x = 212,047.10 × 151,743.40
  4. Step 4: Simplify right side
    151,743.40x = 32,176,747,914.14
  5. Step 5: Solve for x
    x = 32,176,747,914.14/151,743.40
  6. Step 6: Final answer
    x = 212,047.10

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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.