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Finding the Fourth Proportional to 103,673.90, 154,702.04 and 92,503.82

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Solution

The fourth proportional to 103,673.90, 154,702.04 and 92,503.82 is: 138,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.90 : 154,702.04 = 92,503.82 : x
  2. Step 2: Convert to fraction form
    103,673.90/154,702.04 = 92,503.82/x
  3. Step 3: Cross multiply
    103,673.90x = 154,702.04 × 92,503.82
  4. Step 4: Simplify right side
    103,673.90x = 14,310,529,661.79
  5. Step 5: Solve for x
    x = 14,310,529,661.79/103,673.90
  6. Step 6: Final answer
    x = 138,034.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.