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Finding the Fourth Proportional to 111,578.92, 167,368.29 and 28,472.92

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Solution

The fourth proportional to 111,578.92, 167,368.29 and 28,472.92 is: 42,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,578.92 : 167,368.29 = 28,472.92 : x
  2. Step 2: Convert to fraction form
    111,578.92/167,368.29 = 28,472.92/x
  3. Step 3: Cross multiply
    111,578.92x = 167,368.29 × 28,472.92
  4. Step 4: Simplify right side
    111,578.92x = 4,765,463,931.71
  5. Step 5: Solve for x
    x = 4,765,463,931.71/111,578.92
  6. Step 6: Final answer
    x = 42,709.36

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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.