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Finding the Fourth Proportional to 157,435.98, 217,284.30 and 93,774.84

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Solution

The fourth proportional to 157,435.98, 217,284.30 and 93,774.84 is: 129,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,435.98 : 217,284.30 = 93,774.84 : x
  2. Step 2: Convert to fraction form
    157,435.98/217,284.30 = 93,774.84/x
  3. Step 3: Cross multiply
    157,435.98x = 217,284.30 × 93,774.84
  4. Step 4: Simplify right side
    157,435.98x = 20,375,800,467.01
  5. Step 5: Solve for x
    x = 20,375,800,467.01/157,435.98
  6. Step 6: Final answer
    x = 129,422.77

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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.