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Finding the Fourth Proportional to 186,083.50, 256,787.41 and 105,516.45

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Solution

The fourth proportional to 186,083.50, 256,787.41 and 105,516.45 is: 145,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,083.50 : 256,787.41 = 105,516.45 : x
  2. Step 2: Convert to fraction form
    186,083.50/256,787.41 = 105,516.45/x
  3. Step 3: Cross multiply
    186,083.50x = 256,787.41 × 105,516.45
  4. Step 4: Simplify right side
    186,083.50x = 27,095,295,907.89
  5. Step 5: Solve for x
    x = 27,095,295,907.89/186,083.50
  6. Step 6: Final answer
    x = 145,608.27

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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.