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Finding the Fourth Proportional to 93,380.50, 128,864.93 and 50,939.03

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Solution

The fourth proportional to 93,380.50, 128,864.93 and 50,939.03 is: 70,295.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,380.50 : 128,864.93 = 50,939.03 : x
  2. Step 2: Convert to fraction form
    93,380.50/128,864.93 = 50,939.03/x
  3. Step 3: Cross multiply
    93,380.50x = 128,864.93 × 50,939.03
  4. Step 4: Simplify right side
    93,380.50x = 6,564,254,535.22
  5. Step 5: Solve for x
    x = 6,564,254,535.22/93,380.50
  6. Step 6: Final answer
    x = 70,295.77

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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.