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Finding the Fourth Proportional to 93,778.56, 129,409.56 and 51,329.04

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Solution

The fourth proportional to 93,778.56, 129,409.56 and 51,329.04 is: 70,831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,778.56 : 129,409.56 = 51,329.04 : x
  2. Step 2: Convert to fraction form
    93,778.56/129,409.56 = 51,329.04/x
  3. Step 3: Cross multiply
    93,778.56x = 129,409.56 × 51,329.04
  4. Step 4: Simplify right side
    93,778.56x = 6,642,468,481.62
  5. Step 5: Solve for x
    x = 6,642,468,481.62/93,778.56
  6. Step 6: Final answer
    x = 70,831.42

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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.