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Finding the Fourth Proportional to 93,503.28, 129,039.76 and 51,065.76

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Solution

The fourth proportional to 93,503.28, 129,039.76 and 51,065.76 is: 70,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,503.28 : 129,039.76 = 51,065.76 : x
  2. Step 2: Convert to fraction form
    93,503.28/129,039.76 = 51,065.76/x
  3. Step 3: Cross multiply
    93,503.28x = 129,039.76 × 51,065.76
  4. Step 4: Simplify right side
    93,503.28x = 6,589,513,414.62
  5. Step 5: Solve for x
    x = 6,589,513,414.62/93,503.28
  6. Step 6: Final answer
    x = 70,473.61

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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.