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Finding the Fourth Proportional to 96,399.76, 133,030.12 and 53,958.16

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Solution

The fourth proportional to 96,399.76, 133,030.12 and 53,958.16 is: 74,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,399.76 : 133,030.12 = 53,958.16 : x
  2. Step 2: Convert to fraction form
    96,399.76/133,030.12 = 53,958.16/x
  3. Step 3: Cross multiply
    96,399.76x = 133,030.12 × 53,958.16
  4. Step 4: Simplify right side
    96,399.76x = 7,178,060,499.78
  5. Step 5: Solve for x
    x = 7,178,060,499.78/96,399.76
  6. Step 6: Final answer
    x = 74,461.39

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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.