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Finding the Fourth Proportional to 93,165.96, 128,571.78 and 52,878.92

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Solution

The fourth proportional to 93,165.96, 128,571.78 and 52,878.92 is: 72,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,165.96 : 128,571.78 = 52,878.92 : x
  2. Step 2: Convert to fraction form
    93,165.96/128,571.78 = 52,878.92/x
  3. Step 3: Cross multiply
    93,165.96x = 128,571.78 × 52,878.92
  4. Step 4: Simplify right side
    93,165.96x = 6,798,736,868.88
  5. Step 5: Solve for x
    x = 6,798,736,868.88/93,165.96
  6. Step 6: Final answer
    x = 72,974.47

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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.