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Finding the Fourth Proportional to 70,211.53, 96,836.15 and 53,041.15

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Solution

The fourth proportional to 70,211.53, 96,836.15 and 53,041.15 is: 73,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.53 : 96,836.15 = 53,041.15 : x
  2. Step 2: Convert to fraction form
    70,211.53/96,836.15 = 53,041.15/x
  3. Step 3: Cross multiply
    70,211.53x = 96,836.15 × 53,041.15
  4. Step 4: Simplify right side
    70,211.53x = 5,136,300,734.46
  5. Step 5: Solve for x
    x = 5,136,300,734.46/70,211.53
  6. Step 6: Final answer
    x = 73,154.66

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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.