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Finding the Fourth Proportional to 93,104.37, 128,486.93 and 50,665.77

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Solution

The fourth proportional to 93,104.37, 128,486.93 and 50,665.77 is: 69,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,104.37 : 128,486.93 = 50,665.77 : x
  2. Step 2: Convert to fraction form
    93,104.37/128,486.93 = 50,665.77/x
  3. Step 3: Cross multiply
    93,104.37x = 128,486.93 × 50,665.77
  4. Step 4: Simplify right side
    93,104.37x = 6,509,888,990.06
  5. Step 5: Solve for x
    x = 6,509,888,990.06/93,104.37
  6. Step 6: Final answer
    x = 69,920.34

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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.