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Finding the Fourth Proportional to 157,160.05, 216,885.57 and 96,765.54

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Solution

The fourth proportional to 157,160.05, 216,885.57 and 96,765.54 is: 133,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,160.05 : 216,885.57 = 96,765.54 : x
  2. Step 2: Convert to fraction form
    157,160.05/216,885.57 = 96,765.54/x
  3. Step 3: Cross multiply
    157,160.05x = 216,885.57 × 96,765.54
  4. Step 4: Simplify right side
    157,160.05x = 20,987,048,939.53
  5. Step 5: Solve for x
    x = 20,987,048,939.53/157,160.05
  6. Step 6: Final answer
    x = 133,539.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.