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Finding the Fourth Proportional to 70,756.47, 105,582.96 and 64,468.71

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Solution

The fourth proportional to 70,756.47, 105,582.96 and 64,468.71 is: 96,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,756.47 : 105,582.96 = 64,468.71 : x
  2. Step 2: Convert to fraction form
    70,756.47/105,582.96 = 64,468.71/x
  3. Step 3: Cross multiply
    70,756.47x = 105,582.96 × 64,468.71
  4. Step 4: Simplify right side
    70,756.47x = 6,806,797,229.18
  5. Step 5: Solve for x
    x = 6,806,797,229.18/70,756.47
  6. Step 6: Final answer
    x = 96,200.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.