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Finding the Fourth Proportional to 79,657.60, 119,313.60 and 65,833.60

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Solution

The fourth proportional to 79,657.60, 119,313.60 and 65,833.60 is: 98,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,657.60 : 119,313.60 = 65,833.60 : x
  2. Step 2: Convert to fraction form
    79,657.60/119,313.60 = 65,833.60/x
  3. Step 3: Cross multiply
    79,657.60x = 119,313.60 × 65,833.60
  4. Step 4: Simplify right side
    79,657.60x = 7,854,843,816.96
  5. Step 5: Solve for x
    x = 7,854,843,816.96/79,657.60
  6. Step 6: Final answer
    x = 98,607.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.