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Finding the Fourth Proportional to 105,029.66, 144,944.44 and 57,285.66

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Solution

The fourth proportional to 105,029.66, 144,944.44 and 57,285.66 is: 79,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,029.66 : 144,944.44 = 57,285.66 : x
  2. Step 2: Convert to fraction form
    105,029.66/144,944.44 = 57,285.66/x
  3. Step 3: Cross multiply
    105,029.66x = 144,944.44 × 57,285.66
  4. Step 4: Simplify right side
    105,029.66x = 8,303,237,908.73
  5. Step 5: Solve for x
    x = 8,303,237,908.73/105,029.66
  6. Step 6: Final answer
    x = 79,056.12

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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.