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Finding the Fourth Proportional to 157,673.01, 217,520.51 and 96,421.89

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Solution

The fourth proportional to 157,673.01, 217,520.51 and 96,421.89 is: 133,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,673.01 : 217,520.51 = 96,421.89 : x
  2. Step 2: Convert to fraction form
    157,673.01/217,520.51 = 96,421.89/x
  3. Step 3: Cross multiply
    157,673.01x = 217,520.51 × 96,421.89
  4. Step 4: Simplify right side
    157,673.01x = 20,973,739,021.56
  5. Step 5: Solve for x
    x = 20,973,739,021.56/157,673.01
  6. Step 6: Final answer
    x = 133,020.47

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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.