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Finding the Fourth Proportional to 137,702.18, 206,289.90 and 93,110.06

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Solution

The fourth proportional to 137,702.18, 206,289.90 and 93,110.06 is: 139,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,702.18 : 206,289.90 = 93,110.06 : x
  2. Step 2: Convert to fraction form
    137,702.18/206,289.90 = 93,110.06/x
  3. Step 3: Cross multiply
    137,702.18x = 206,289.90 × 93,110.06
  4. Step 4: Simplify right side
    137,702.18x = 19,207,664,966.39
  5. Step 5: Solve for x
    x = 19,207,664,966.39/137,702.18
  6. Step 6: Final answer
    x = 139,487.01

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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.