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Finding the Fourth Proportional to 94,636.80, 141,659.88 and 69,705

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Solution

The fourth proportional to 94,636.80, 141,659.88 and 69,705 is: 104,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,636.80 : 141,659.88 = 69,705 : x
  2. Step 2: Convert to fraction form
    94,636.80/141,659.88 = 69,705/x
  3. Step 3: Cross multiply
    94,636.80x = 141,659.88 × 69,705
  4. Step 4: Simplify right side
    94,636.80x = 9,874,401,935.40
  5. Step 5: Solve for x
    x = 9,874,401,935.40/94,636.80
  6. Step 6: Final answer
    x = 104,339.98

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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.