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Finding the Fourth Proportional to 70,473.58, 105,503.01 and 47,041.90

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Solution

The fourth proportional to 70,473.58, 105,503.01 and 47,041.90 is: 70,424.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,473.58 : 105,503.01 = 47,041.90 : x
  2. Step 2: Convert to fraction form
    70,473.58/105,503.01 = 47,041.90/x
  3. Step 3: Cross multiply
    70,473.58x = 105,503.01 × 47,041.90
  4. Step 4: Simplify right side
    70,473.58x = 4,963,062,046.12
  5. Step 5: Solve for x
    x = 4,963,062,046.12/70,473.58
  6. Step 6: Final answer
    x = 70,424.43

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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.