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Finding the Fourth Proportional to 93,064.73, 128,428.61 and 50,623.29

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Solution

The fourth proportional to 93,064.73, 128,428.61 and 50,623.29 is: 69,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,064.73 : 128,428.61 = 50,623.29 : x
  2. Step 2: Convert to fraction form
    93,064.73/128,428.61 = 50,623.29/x
  3. Step 3: Cross multiply
    93,064.73x = 128,428.61 × 50,623.29
  4. Step 4: Simplify right side
    93,064.73x = 6,501,478,515.21
  5. Step 5: Solve for x
    x = 6,501,478,515.21/93,064.73
  6. Step 6: Final answer
    x = 69,859.75

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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.