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Finding the Fourth Proportional to 157,698.65, 217,622.67 and 97,245.11

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Solution

The fourth proportional to 157,698.65, 217,622.67 and 97,245.11 is: 134,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,698.65 : 217,622.67 = 97,245.11 : x
  2. Step 2: Convert to fraction form
    157,698.65/217,622.67 = 97,245.11/x
  3. Step 3: Cross multiply
    157,698.65x = 217,622.67 × 97,245.11
  4. Step 4: Simplify right side
    157,698.65x = 21,162,740,258.41
  5. Step 5: Solve for x
    x = 21,162,740,258.41/157,698.65
  6. Step 6: Final answer
    x = 134,197.35

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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.