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Finding the Fourth Proportional to 92,702.50, 139,058.07 and 27,038.50

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Solution

The fourth proportional to 92,702.50, 139,058.07 and 27,038.50 is: 40,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,702.50 : 139,058.07 = 27,038.50 : x
  2. Step 2: Convert to fraction form
    92,702.50/139,058.07 = 27,038.50/x
  3. Step 3: Cross multiply
    92,702.50x = 139,058.07 × 27,038.50
  4. Step 4: Simplify right side
    92,702.50x = 3,759,921,625.70
  5. Step 5: Solve for x
    x = 3,759,921,625.70/92,702.50
  6. Step 6: Final answer
    x = 40,559.01

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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.