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Finding the Fourth Proportional to 70,253.90, 105,307.04 and 43,599.84

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Solution

The fourth proportional to 70,253.90, 105,307.04 and 43,599.84 is: 65,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,253.90 : 105,307.04 = 43,599.84 : x
  2. Step 2: Convert to fraction form
    70,253.90/105,307.04 = 43,599.84/x
  3. Step 3: Cross multiply
    70,253.90x = 105,307.04 × 43,599.84
  4. Step 4: Simplify right side
    70,253.90x = 4,591,370,094.87
  5. Step 5: Solve for x
    x = 4,591,370,094.87/70,253.90
  6. Step 6: Final answer
    x = 65,353.95

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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.