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Finding the Fourth Proportional to 70,472.27, 105,501.04 and 47,040.59

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Solution

The fourth proportional to 70,472.27, 105,501.04 and 47,040.59 is: 70,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,472.27 : 105,501.04 = 47,040.59 : x
  2. Step 2: Convert to fraction form
    70,472.27/105,501.04 = 47,040.59/x
  3. Step 3: Cross multiply
    70,472.27x = 105,501.04 × 47,040.59
  4. Step 4: Simplify right side
    70,472.27x = 4,962,830,962.26
  5. Step 5: Solve for x
    x = 4,962,830,962.26/70,472.27
  6. Step 6: Final answer
    x = 70,422.47

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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.