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Finding the Fourth Proportional to 93,797.30, 129,440.22 and 51,355.74

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Solution

The fourth proportional to 93,797.30, 129,440.22 and 51,355.74 is: 70,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,797.30 : 129,440.22 = 51,355.74 : x
  2. Step 2: Convert to fraction form
    93,797.30/129,440.22 = 51,355.74/x
  3. Step 3: Cross multiply
    93,797.30x = 129,440.22 × 51,355.74
  4. Step 4: Simplify right side
    93,797.30x = 6,647,498,283.86
  5. Step 5: Solve for x
    x = 6,647,498,283.86/93,797.30
  6. Step 6: Final answer
    x = 70,870.89

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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.