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Finding the Fourth Proportional to 157,064.40, 235,337.40 and 133,736.40

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Solution

The fourth proportional to 157,064.40, 235,337.40 and 133,736.40 is: 200,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,064.40 : 235,337.40 = 133,736.40 : x
  2. Step 2: Convert to fraction form
    157,064.40/235,337.40 = 133,736.40/x
  3. Step 3: Cross multiply
    157,064.40x = 235,337.40 × 133,736.40
  4. Step 4: Simplify right side
    157,064.40x = 31,473,176,661.36
  5. Step 5: Solve for x
    x = 31,473,176,661.36/157,064.40
  6. Step 6: Final answer
    x = 200,383.90

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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.