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Finding the Fourth Proportional to 235,643.04, 353,411.29 and 67,159.75

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Solution

The fourth proportional to 235,643.04, 353,411.29 and 67,159.75 is: 100,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,643.04 : 353,411.29 = 67,159.75 : x
  2. Step 2: Convert to fraction form
    235,643.04/353,411.29 = 67,159.75/x
  3. Step 3: Cross multiply
    235,643.04x = 353,411.29 × 67,159.75
  4. Step 4: Simplify right side
    235,643.04x = 23,735,013,883.58
  5. Step 5: Solve for x
    x = 23,735,013,883.58/235,643.04
  6. Step 6: Final answer
    x = 100,724.44

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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.