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Finding the Fourth Proportional to 93,325.64, 128,787.06 and 50,885

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Solution

The fourth proportional to 93,325.64, 128,787.06 and 50,885 is: 70,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,325.64 : 128,787.06 = 50,885 : x
  2. Step 2: Convert to fraction form
    93,325.64/128,787.06 = 50,885/x
  3. Step 3: Cross multiply
    93,325.64x = 128,787.06 × 50,885
  4. Step 4: Simplify right side
    93,325.64x = 6,553,329,548.10
  5. Step 5: Solve for x
    x = 6,553,329,548.10/93,325.64
  6. Step 6: Final answer
    x = 70,220.03

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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.