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Finding the Fourth Proportional to 93,020.82, 128,363.58 and 50,578.98

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Solution

The fourth proportional to 93,020.82, 128,363.58 and 50,578.98 is: 69,796.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,020.82 : 128,363.58 = 50,578.98 : x
  2. Step 2: Convert to fraction form
    93,020.82/128,363.58 = 50,578.98/x
  3. Step 3: Cross multiply
    93,020.82x = 128,363.58 × 50,578.98
  4. Step 4: Simplify right side
    93,020.82x = 6,492,498,945.55
  5. Step 5: Solve for x
    x = 6,492,498,945.55/93,020.82
  6. Step 6: Final answer
    x = 69,796.19

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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.