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Finding the Fourth Proportional to 268,384.83, 402,567.98 and 68,706.93

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Solution

The fourth proportional to 268,384.83, 402,567.98 and 68,706.93 is: 103,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,384.83 : 402,567.98 = 68,706.93 : x
  2. Step 2: Convert to fraction form
    268,384.83/402,567.98 = 68,706.93/x
  3. Step 3: Cross multiply
    268,384.83x = 402,567.98 × 68,706.93
  4. Step 4: Simplify right side
    268,384.83x = 27,659,211,188.20
  5. Step 5: Solve for x
    x = 27,659,211,188.20/268,384.83
  6. Step 6: Final answer
    x = 103,058.03

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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.