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Finding the Fourth Proportional to 157,709.93, 217,638.18 and 97,256.39

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Solution

The fourth proportional to 157,709.93, 217,638.18 and 97,256.39 is: 134,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,709.93 : 217,638.18 = 97,256.39 : x
  2. Step 2: Convert to fraction form
    157,709.93/217,638.18 = 97,256.39/x
  3. Step 3: Cross multiply
    157,709.93x = 217,638.18 × 97,256.39
  4. Step 4: Simplify right side
    157,709.93x = 21,166,702,624.78
  5. Step 5: Solve for x
    x = 21,166,702,624.78/157,709.93
  6. Step 6: Final answer
    x = 134,212.88

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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.