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Finding the Fourth Proportional to 93,679.64, 129,280.99 and 51,238.17

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Solution

The fourth proportional to 93,679.64, 129,280.99 and 51,238.17 is: 70,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,679.64 : 129,280.99 = 51,238.17 : x
  2. Step 2: Convert to fraction form
    93,679.64/129,280.99 = 51,238.17/x
  3. Step 3: Cross multiply
    93,679.64x = 129,280.99 × 51,238.17
  4. Step 4: Simplify right side
    93,679.64x = 6,624,121,343.39
  5. Step 5: Solve for x
    x = 6,624,121,343.39/93,679.64
  6. Step 6: Final answer
    x = 70,710.36

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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.