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Finding the Fourth Proportional to 96,749.50, 133,511.80 and 53,727.90

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Solution

The fourth proportional to 96,749.50, 133,511.80 and 53,727.90 is: 74,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,749.50 : 133,511.80 = 53,727.90 : x
  2. Step 2: Convert to fraction form
    96,749.50/133,511.80 = 53,727.90/x
  3. Step 3: Cross multiply
    96,749.50x = 133,511.80 × 53,727.90
  4. Step 4: Simplify right side
    96,749.50x = 7,173,308,639.22
  5. Step 5: Solve for x
    x = 7,173,308,639.22/96,749.50
  6. Step 6: Final answer
    x = 74,143.11

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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.