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Finding the Fourth Proportional to 122,315.87, 168,802.88 and 68,596.62

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Solution

The fourth proportional to 122,315.87, 168,802.88 and 68,596.62 is: 94,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,315.87 : 168,802.88 = 68,596.62 : x
  2. Step 2: Convert to fraction form
    122,315.87/168,802.88 = 68,596.62/x
  3. Step 3: Cross multiply
    122,315.87x = 168,802.88 × 68,596.62
  4. Step 4: Simplify right side
    122,315.87x = 11,579,306,842.77
  5. Step 5: Solve for x
    x = 11,579,306,842.77/122,315.87
  6. Step 6: Final answer
    x = 94,667.25

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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.