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Finding the Fourth Proportional to 93,275.46, 128,722.86 and 50,836.74

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Solution

The fourth proportional to 93,275.46, 128,722.86 and 50,836.74 is: 70,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,275.46 : 128,722.86 = 50,836.74 : x
  2. Step 2: Convert to fraction form
    93,275.46/128,722.86 = 50,836.74/x
  3. Step 3: Cross multiply
    93,275.46x = 128,722.86 × 50,836.74
  4. Step 4: Simplify right side
    93,275.46x = 6,543,850,565.88
  5. Step 5: Solve for x
    x = 6,543,850,565.88/93,275.46
  6. Step 6: Final answer
    x = 70,156.19

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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.