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Finding the Fourth Proportional to 88,989.81, 122,803.20 and 48,702.71

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Solution

The fourth proportional to 88,989.81, 122,803.20 and 48,702.71 is: 67,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,989.81 : 122,803.20 = 48,702.71 : x
  2. Step 2: Convert to fraction form
    88,989.81/122,803.20 = 48,702.71/x
  3. Step 3: Cross multiply
    88,989.81x = 122,803.20 × 48,702.71
  4. Step 4: Simplify right side
    88,989.81x = 5,980,848,636.67
  5. Step 5: Solve for x
    x = 5,980,848,636.67/88,989.81
  6. Step 6: Final answer
    x = 67,208.24

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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.