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Finding the Fourth Proportional to 78,702.08, 108,605.40 and 44,710.46

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Solution

The fourth proportional to 78,702.08, 108,605.40 and 44,710.46 is: 61,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,702.08 : 108,605.40 = 44,710.46 : x
  2. Step 2: Convert to fraction form
    78,702.08/108,605.40 = 44,710.46/x
  3. Step 3: Cross multiply
    78,702.08x = 108,605.40 × 44,710.46
  4. Step 4: Simplify right side
    78,702.08x = 4,855,797,392.48
  5. Step 5: Solve for x
    x = 4,855,797,392.48/78,702.08
  6. Step 6: Final answer
    x = 61,698.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.