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Finding the Fourth Proportional to 93,463.38, 128,981.67 and 51,022.20

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Solution

The fourth proportional to 93,463.38, 128,981.67 and 51,022.20 is: 70,411.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,463.38 : 128,981.67 = 51,022.20 : x
  2. Step 2: Convert to fraction form
    93,463.38/128,981.67 = 51,022.20/x
  3. Step 3: Cross multiply
    93,463.38x = 128,981.67 × 51,022.20
  4. Step 4: Simplify right side
    93,463.38x = 6,580,928,563.07
  5. Step 5: Solve for x
    x = 6,580,928,563.07/93,463.38
  6. Step 6: Final answer
    x = 70,411.84

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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.