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Finding the Fourth Proportional to 299,178.72, 448,651.44 and 112,088.16

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Solution

The fourth proportional to 299,178.72, 448,651.44 and 112,088.16 is: 168,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,178.72 : 448,651.44 = 112,088.16 : x
  2. Step 2: Convert to fraction form
    299,178.72/448,651.44 = 112,088.16/x
  3. Step 3: Cross multiply
    299,178.72x = 448,651.44 × 112,088.16
  4. Step 4: Simplify right side
    299,178.72x = 50,288,514,390.95
  5. Step 5: Solve for x
    x = 50,288,514,390.95/299,178.72
  6. Step 6: Final answer
    x = 168,088.54

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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.