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Finding the Fourth Proportional to 105,959.75, 146,237.42 and 61,247.75

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Solution

The fourth proportional to 105,959.75, 146,237.42 and 61,247.75 is: 84,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,959.75 : 146,237.42 = 61,247.75 : x
  2. Step 2: Convert to fraction form
    105,959.75/146,237.42 = 61,247.75/x
  3. Step 3: Cross multiply
    105,959.75x = 146,237.42 × 61,247.75
  4. Step 4: Simplify right side
    105,959.75x = 8,956,712,940.81
  5. Step 5: Solve for x
    x = 8,956,712,940.81/105,959.75
  6. Step 6: Final answer
    x = 84,529.39

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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.