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Finding the Fourth Proportional to 93,133.44, 128,674.56 and 64,964.88

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Solution

The fourth proportional to 93,133.44, 128,674.56 and 64,964.88 is: 89,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,133.44 : 128,674.56 = 64,964.88 : x
  2. Step 2: Convert to fraction form
    93,133.44/128,674.56 = 64,964.88/x
  3. Step 3: Cross multiply
    93,133.44x = 128,674.56 × 64,964.88
  4. Step 4: Simplify right side
    93,133.44x = 8,359,327,349.45
  5. Step 5: Solve for x
    x = 8,359,327,349.45/93,133.44
  6. Step 6: Final answer
    x = 89,756.45

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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.