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Finding the Fourth Proportional to 109,702.77, 151,389.84 and 59,401.77

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Solution

The fourth proportional to 109,702.77, 151,389.84 and 59,401.77 is: 81,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,702.77 : 151,389.84 = 59,401.77 : x
  2. Step 2: Convert to fraction form
    109,702.77/151,389.84 = 59,401.77/x
  3. Step 3: Cross multiply
    109,702.77x = 151,389.84 × 59,401.77
  4. Step 4: Simplify right side
    109,702.77x = 8,992,824,456.02
  5. Step 5: Solve for x
    x = 8,992,824,456.02/109,702.77
  6. Step 6: Final answer
    x = 81,974.45

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1.5x scale

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.