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Finding the Fourth Proportional to 118,814.48, 178,500.44 and 112,089.32

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Solution

The fourth proportional to 118,814.48, 178,500.44 and 112,089.32 is: 168,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,814.48 : 178,500.44 = 112,089.32 : x
  2. Step 2: Convert to fraction form
    118,814.48/178,500.44 = 112,089.32/x
  3. Step 3: Cross multiply
    118,814.48x = 178,500.44 × 112,089.32
  4. Step 4: Simplify right side
    118,814.48x = 20,007,992,939.30
  5. Step 5: Solve for x
    x = 20,007,992,939.30/118,814.48
  6. Step 6: Final answer
    x = 168,396.92

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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.