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Finding the Fourth Proportional to 235,348.71, 352,912.18 and 85,483.32

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Solution

The fourth proportional to 235,348.71, 352,912.18 and 85,483.32 is: 128,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,348.71 : 352,912.18 = 85,483.32 : x
  2. Step 2: Convert to fraction form
    235,348.71/352,912.18 = 85,483.32/x
  3. Step 3: Cross multiply
    235,348.71x = 352,912.18 × 85,483.32
  4. Step 4: Simplify right side
    235,348.71x = 30,168,104,814.84
  5. Step 5: Solve for x
    x = 30,168,104,814.84/235,348.71
  6. Step 6: Final answer
    x = 128,184.70

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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.