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Finding the Fourth Proportional to 126,895.01, 175,068.06 and 81,597.98

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Solution

The fourth proportional to 126,895.01, 175,068.06 and 81,597.98 is: 112,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,895.01 : 175,068.06 = 81,597.98 : x
  2. Step 2: Convert to fraction form
    126,895.01/175,068.06 = 81,597.98/x
  3. Step 3: Cross multiply
    126,895.01x = 175,068.06 × 81,597.98
  4. Step 4: Simplify right side
    126,895.01x = 14,285,199,183.18
  5. Step 5: Solve for x
    x = 14,285,199,183.18/126,895.01
  6. Step 6: Final answer
    x = 112,574.95

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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.