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Finding the Fourth Proportional to 114,239.92, 157,639.72 and 66,499.60

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Solution

The fourth proportional to 114,239.92, 157,639.72 and 66,499.60 is: 91,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,239.92 : 157,639.72 = 66,499.60 : x
  2. Step 2: Convert to fraction form
    114,239.92/157,639.72 = 66,499.60/x
  3. Step 3: Cross multiply
    114,239.92x = 157,639.72 × 66,499.60
  4. Step 4: Simplify right side
    114,239.92x = 10,482,978,324.11
  5. Step 5: Solve for x
    x = 10,482,978,324.11/114,239.92
  6. Step 6: Final answer
    x = 91,762.83

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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.