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Finding the Fourth Proportional to 262,230.30, 393,115.05 and 157,091.10

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Solution

The fourth proportional to 262,230.30, 393,115.05 and 157,091.10 is: 235,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,230.30 : 393,115.05 = 157,091.10 : x
  2. Step 2: Convert to fraction form
    262,230.30/393,115.05 = 157,091.10/x
  3. Step 3: Cross multiply
    262,230.30x = 393,115.05 × 157,091.10
  4. Step 4: Simplify right side
    262,230.30x = 61,754,875,631.06
  5. Step 5: Solve for x
    x = 61,754,875,631.06/262,230.30
  6. Step 6: Final answer
    x = 235,498.63

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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.