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Finding the Fourth Proportional to 113,019.60, 169,584.48 and 46,479.68

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Solution

The fourth proportional to 113,019.60, 169,584.48 and 46,479.68 is: 69,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,019.60 : 169,584.48 = 46,479.68 : x
  2. Step 2: Convert to fraction form
    113,019.60/169,584.48 = 46,479.68/x
  3. Step 3: Cross multiply
    113,019.60x = 169,584.48 × 46,479.68
  4. Step 4: Simplify right side
    113,019.60x = 7,882,232,363.37
  5. Step 5: Solve for x
    x = 7,882,232,363.37/113,019.60
  6. Step 6: Final answer
    x = 69,742.17

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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.