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Finding the Fourth Proportional to 93,158.96, 128,562.12 and 52,871.84

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Solution

The fourth proportional to 93,158.96, 128,562.12 and 52,871.84 is: 72,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,158.96 : 128,562.12 = 52,871.84 : x
  2. Step 2: Convert to fraction form
    93,158.96/128,562.12 = 52,871.84/x
  3. Step 3: Cross multiply
    93,158.96x = 128,562.12 × 52,871.84
  4. Step 4: Simplify right side
    93,158.96x = 6,797,315,838.70
  5. Step 5: Solve for x
    x = 6,797,315,838.70/93,158.96
  6. Step 6: Final answer
    x = 72,964.70

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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.