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Finding the Fourth Proportional to 162,181.91, 223,916.35 and 145,156.63

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Solution

The fourth proportional to 162,181.91, 223,916.35 and 145,156.63 is: 200,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,181.91 : 223,916.35 = 145,156.63 : x
  2. Step 2: Convert to fraction form
    162,181.91/223,916.35 = 145,156.63/x
  3. Step 3: Cross multiply
    162,181.91x = 223,916.35 × 145,156.63
  4. Step 4: Simplify right side
    162,181.91x = 32,502,942,767.90
  5. Step 5: Solve for x
    x = 32,502,942,767.90/162,181.91
  6. Step 6: Final answer
    x = 200,410.41

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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.