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Finding the Fourth Proportional to 163,539.84, 245,404.94 and 68,763.16

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Solution

The fourth proportional to 163,539.84, 245,404.94 and 68,763.16 is: 103,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,539.84 : 245,404.94 = 68,763.16 : x
  2. Step 2: Convert to fraction form
    163,539.84/245,404.94 = 68,763.16/x
  3. Step 3: Cross multiply
    163,539.84x = 245,404.94 × 68,763.16
  4. Step 4: Simplify right side
    163,539.84x = 16,874,819,154.01
  5. Step 5: Solve for x
    x = 16,874,819,154.01/163,539.84
  6. Step 6: Final answer
    x = 103,184.76

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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.