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Finding the Fourth Proportional to 93,798.54, 129,440.84 and 51,356.16

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Solution

The fourth proportional to 93,798.54, 129,440.84 and 51,356.16 is: 70,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,798.54 : 129,440.84 = 51,356.16 : x
  2. Step 2: Convert to fraction form
    93,798.54/129,440.84 = 51,356.16/x
  3. Step 3: Cross multiply
    93,798.54x = 129,440.84 × 51,356.16
  4. Step 4: Simplify right side
    93,798.54x = 6,647,584,489.57
  5. Step 5: Solve for x
    x = 6,647,584,489.57/93,798.54
  6. Step 6: Final answer
    x = 70,870.87

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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.