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Finding the Fourth Proportional to 262,112.30, 393,103.44 and 112,335.62

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Solution

The fourth proportional to 262,112.30, 393,103.44 and 112,335.62 is: 168,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,112.30 : 393,103.44 = 112,335.62 : x
  2. Step 2: Convert to fraction form
    262,112.30/393,103.44 = 112,335.62/x
  3. Step 3: Cross multiply
    262,112.30x = 393,103.44 × 112,335.62
  4. Step 4: Simplify right side
    262,112.30x = 44,159,518,656.53
  5. Step 5: Solve for x
    x = 44,159,518,656.53/262,112.30
  6. Step 6: Final answer
    x = 168,475.57

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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.