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Finding the Fourth Proportional to 60,084.98, 90,140.40 and 17,968.40

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Solution

The fourth proportional to 60,084.98, 90,140.40 and 17,968.40 is: 26,956.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,084.98 : 90,140.40 = 17,968.40 : x
  2. Step 2: Convert to fraction form
    60,084.98/90,140.40 = 17,968.40/x
  3. Step 3: Cross multiply
    60,084.98x = 90,140.40 × 17,968.40
  4. Step 4: Simplify right side
    60,084.98x = 1,619,678,763.36
  5. Step 5: Solve for x
    x = 1,619,678,763.36/60,084.98
  6. Step 6: Final answer
    x = 26,956.47

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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.