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Finding the Fourth Proportional to 93,435.94, 128,939.80 and 50,994.77

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Solution

The fourth proportional to 93,435.94, 128,939.80 and 50,994.77 is: 70,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,435.94 : 128,939.80 = 50,994.77 : x
  2. Step 2: Convert to fraction form
    93,435.94/128,939.80 = 50,994.77/x
  3. Step 3: Cross multiply
    93,435.94x = 128,939.80 × 50,994.77
  4. Step 4: Simplify right side
    93,435.94x = 6,575,255,189.87
  5. Step 5: Solve for x
    x = 6,575,255,189.87/93,435.94
  6. Step 6: Final answer
    x = 70,371.80

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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.