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Finding the Fourth Proportional to 113,451, 170,156.44 and 42,357.68

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Solution

The fourth proportional to 113,451, 170,156.44 and 42,357.68 is: 63,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,451 : 170,156.44 = 42,357.68 : x
  2. Step 2: Convert to fraction form
    113,451/170,156.44 = 42,357.68/x
  3. Step 3: Cross multiply
    113,451x = 170,156.44 × 42,357.68
  4. Step 4: Simplify right side
    113,451x = 7,207,432,035.46
  5. Step 5: Solve for x
    x = 7,207,432,035.46/113,451
  6. Step 6: Final answer
    x = 63,529.03

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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.