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Finding the Fourth Proportional to 93,263.39, 128,703.38 and 50,821.91

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Solution

The fourth proportional to 93,263.39, 128,703.38 and 50,821.91 is: 70,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,263.39 : 128,703.38 = 50,821.91 : x
  2. Step 2: Convert to fraction form
    93,263.39/128,703.38 = 50,821.91/x
  3. Step 3: Cross multiply
    93,263.39x = 128,703.38 × 50,821.91
  4. Step 4: Simplify right side
    93,263.39x = 6,540,950,697.43
  5. Step 5: Solve for x
    x = 6,540,950,697.43/93,263.39
  6. Step 6: Final answer
    x = 70,134.18

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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.