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Finding the Fourth Proportional to 106,802.59, 147,435.90 and 68,617.57

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Solution

The fourth proportional to 106,802.59, 147,435.90 and 68,617.57 is: 94,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,802.59 : 147,435.90 = 68,617.57 : x
  2. Step 2: Convert to fraction form
    106,802.59/147,435.90 = 68,617.57/x
  3. Step 3: Cross multiply
    106,802.59x = 147,435.90 × 68,617.57
  4. Step 4: Simplify right side
    106,802.59x = 10,116,692,451.58
  5. Step 5: Solve for x
    x = 10,116,692,451.58/106,802.59
  6. Step 6: Final answer
    x = 94,723.29

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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.