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Finding the Fourth Proportional to 93,384.56, 129,415.88 and 91,612.40

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Solution

The fourth proportional to 93,384.56, 129,415.88 and 91,612.40 is: 126,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,384.56 : 129,415.88 = 91,612.40 : x
  2. Step 2: Convert to fraction form
    93,384.56/129,415.88 = 91,612.40/x
  3. Step 3: Cross multiply
    93,384.56x = 129,415.88 × 91,612.40
  4. Step 4: Simplify right side
    93,384.56x = 11,856,099,364.91
  5. Step 5: Solve for x
    x = 11,856,099,364.91/93,384.56
  6. Step 6: Final answer
    x = 126,959.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.