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Finding the Fourth Proportional to 96,421.62, 133,062.03 and 53,980.86

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Solution

The fourth proportional to 96,421.62, 133,062.03 and 53,980.86 is: 74,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,421.62 : 133,062.03 = 53,980.86 : x
  2. Step 2: Convert to fraction form
    96,421.62/133,062.03 = 53,980.86/x
  3. Step 3: Cross multiply
    96,421.62x = 133,062.03 × 53,980.86
  4. Step 4: Simplify right side
    96,421.62x = 7,182,802,812.75
  5. Step 5: Solve for x
    x = 7,182,802,812.75/96,421.62
  6. Step 6: Final answer
    x = 74,493.70

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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.