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Finding the Fourth Proportional to 78,497.85, 108,329.88 and 44,970.33

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Solution

The fourth proportional to 78,497.85, 108,329.88 and 44,970.33 is: 62,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,497.85 : 108,329.88 = 44,970.33 : x
  2. Step 2: Convert to fraction form
    78,497.85/108,329.88 = 44,970.33/x
  3. Step 3: Cross multiply
    78,497.85x = 108,329.88 × 44,970.33
  4. Step 4: Simplify right side
    78,497.85x = 4,871,630,452.46
  5. Step 5: Solve for x
    x = 4,871,630,452.46/78,497.85
  6. Step 6: Final answer
    x = 62,060.69

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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.