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Finding the Fourth Proportional to 93,432.89, 128,935.59 and 50,991.73

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Solution

The fourth proportional to 93,432.89, 128,935.59 and 50,991.73 is: 70,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.89 : 128,935.59 = 50,991.73 : x
  2. Step 2: Convert to fraction form
    93,432.89/128,935.59 = 50,991.73/x
  3. Step 3: Cross multiply
    93,432.89x = 128,935.59 × 50,991.73
  4. Step 4: Simplify right side
    93,432.89x = 6,574,648,792.67
  5. Step 5: Solve for x
    x = 6,574,648,792.67/93,432.89
  6. Step 6: Final answer
    x = 70,367.61

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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.