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Finding the Fourth Proportional to 93,269.76, 128,711.70 and 50,828.28

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Solution

The fourth proportional to 93,269.76, 128,711.70 and 50,828.28 is: 70,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,269.76 : 128,711.70 = 50,828.28 : x
  2. Step 2: Convert to fraction form
    93,269.76/128,711.70 = 50,828.28/x
  3. Step 3: Cross multiply
    93,269.76x = 128,711.70 × 50,828.28
  4. Step 4: Simplify right side
    93,269.76x = 6,542,194,326.88
  5. Step 5: Solve for x
    x = 6,542,194,326.88/93,269.76
  6. Step 6: Final answer
    x = 70,142.72

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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.