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Finding the Fourth Proportional to 126,068.94, 173,970.72 and 68,707.08

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Solution

The fourth proportional to 126,068.94, 173,970.72 and 68,707.08 is: 94,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.94 : 173,970.72 = 68,707.08 : x
  2. Step 2: Convert to fraction form
    126,068.94/173,970.72 = 68,707.08/x
  3. Step 3: Cross multiply
    126,068.94x = 173,970.72 × 68,707.08
  4. Step 4: Simplify right side
    126,068.94x = 11,953,020,176.70
  5. Step 5: Solve for x
    x = 11,953,020,176.70/126,068.94
  6. Step 6: Final answer
    x = 94,813.36

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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.