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Finding the Fourth Proportional to 93,830.92, 129,481.83 and 51,381.25

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Solution

The fourth proportional to 93,830.92, 129,481.83 and 51,381.25 is: 70,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,830.92 : 129,481.83 = 51,381.25 : x
  2. Step 2: Convert to fraction form
    93,830.92/129,481.83 = 51,381.25/x
  3. Step 3: Cross multiply
    93,830.92x = 129,481.83 × 51,381.25
  4. Step 4: Simplify right side
    93,830.92x = 6,652,938,277.69
  5. Step 5: Solve for x
    x = 6,652,938,277.69/93,830.92
  6. Step 6: Final answer
    x = 70,903.47

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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.