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Finding the Fourth Proportional to 157,221.62, 217,038.96 and 92,670.50

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Solution

The fourth proportional to 157,221.62, 217,038.96 and 92,670.50 is: 127,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,221.62 : 217,038.96 = 92,670.50 : x
  2. Step 2: Convert to fraction form
    157,221.62/217,038.96 = 92,670.50/x
  3. Step 3: Cross multiply
    157,221.62x = 217,038.96 × 92,670.50
  4. Step 4: Simplify right side
    157,221.62x = 20,113,108,942.68
  5. Step 5: Solve for x
    x = 20,113,108,942.68/157,221.62
  6. Step 6: Final answer
    x = 127,928.39

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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.