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Finding the Fourth Proportional to 93,330.64, 128,793.48 and 50,890

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Solution

The fourth proportional to 93,330.64, 128,793.48 and 50,890 is: 70,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,330.64 : 128,793.48 = 50,890 : x
  2. Step 2: Convert to fraction form
    93,330.64/128,793.48 = 50,890/x
  3. Step 3: Cross multiply
    93,330.64x = 128,793.48 × 50,890
  4. Step 4: Simplify right side
    93,330.64x = 6,554,300,197.20
  5. Step 5: Solve for x
    x = 6,554,300,197.20/93,330.64
  6. Step 6: Final answer
    x = 70,226.67

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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.