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Finding the Fourth Proportional to 93,694.64, 129,298.56 and 51,253.16

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Solution

The fourth proportional to 93,694.64, 129,298.56 and 51,253.16 is: 70,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,694.64 : 129,298.56 = 51,253.16 : x
  2. Step 2: Convert to fraction form
    93,694.64/129,298.56 = 51,253.16/x
  3. Step 3: Cross multiply
    93,694.64x = 129,298.56 × 51,253.16
  4. Step 4: Simplify right side
    93,694.64x = 6,626,959,783.45
  5. Step 5: Solve for x
    x = 6,626,959,783.45/93,694.64
  6. Step 6: Final answer
    x = 70,729.34

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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.