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Finding the Fourth Proportional to 61,490.58, 92,235.88 and 47,471.06

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Solution

The fourth proportional to 61,490.58, 92,235.88 and 47,471.06 is: 71,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,490.58 : 92,235.88 = 47,471.06 : x
  2. Step 2: Convert to fraction form
    61,490.58/92,235.88 = 47,471.06/x
  3. Step 3: Cross multiply
    61,490.58x = 92,235.88 × 47,471.06
  4. Step 4: Simplify right side
    61,490.58x = 4,378,534,993.63
  5. Step 5: Solve for x
    x = 4,378,534,993.63/61,490.58
  6. Step 6: Final answer
    x = 71,206.60

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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.