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Finding the Fourth Proportional to 93,098.50, 128,474.85 and 50,656.30

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Solution

The fourth proportional to 93,098.50, 128,474.85 and 50,656.30 is: 69,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,098.50 : 128,474.85 = 50,656.30 : x
  2. Step 2: Convert to fraction form
    93,098.50/128,474.85 = 50,656.30/x
  3. Step 3: Cross multiply
    93,098.50x = 128,474.85 × 50,656.30
  4. Step 4: Simplify right side
    93,098.50x = 6,508,060,544.06
  5. Step 5: Solve for x
    x = 6,508,060,544.06/93,098.50
  6. Step 6: Final answer
    x = 69,905.11

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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.