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Finding the Fourth Proportional to 69,702.04, 104,575.74 and 47,482.12

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Solution

The fourth proportional to 69,702.04, 104,575.74 and 47,482.12 is: 71,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,702.04 : 104,575.74 = 47,482.12 : x
  2. Step 2: Convert to fraction form
    69,702.04/104,575.74 = 47,482.12/x
  3. Step 3: Cross multiply
    69,702.04x = 104,575.74 × 47,482.12
  4. Step 4: Simplify right side
    69,702.04x = 4,965,477,835.77
  5. Step 5: Solve for x
    x = 4,965,477,835.77/69,702.04
  6. Step 6: Final answer
    x = 71,238.63

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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.