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Finding the Fourth Proportional to 88,605.40, 122,274.48 and 48,319

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Solution

The fourth proportional to 88,605.40, 122,274.48 and 48,319 is: 66,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,605.40 : 122,274.48 = 48,319 : x
  2. Step 2: Convert to fraction form
    88,605.40/122,274.48 = 48,319/x
  3. Step 3: Cross multiply
    88,605.40x = 122,274.48 × 48,319
  4. Step 4: Simplify right side
    88,605.40x = 5,908,180,599.12
  5. Step 5: Solve for x
    x = 5,908,180,599.12/88,605.40
  6. Step 6: Final answer
    x = 66,679.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.