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Finding the Fourth Proportional to 153,775.92, 230,697.74 and 47,174.56

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Solution

The fourth proportional to 153,775.92, 230,697.74 and 47,174.56 is: 70,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,775.92 : 230,697.74 = 47,174.56 : x
  2. Step 2: Convert to fraction form
    153,775.92/230,697.74 = 47,174.56/x
  3. Step 3: Cross multiply
    153,775.92x = 230,697.74 × 47,174.56
  4. Step 4: Simplify right side
    153,775.92x = 10,883,064,377.49
  5. Step 5: Solve for x
    x = 10,883,064,377.49/153,775.92
  6. Step 6: Final answer
    x = 70,772.23

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1.5x scale

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.