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Finding the Fourth Proportional to 114,386.78, 171,580.29 and 47,790.62

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Solution

The fourth proportional to 114,386.78, 171,580.29 and 47,790.62 is: 71,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,386.78 : 171,580.29 = 47,790.62 : x
  2. Step 2: Convert to fraction form
    114,386.78/171,580.29 = 47,790.62/x
  3. Step 3: Cross multiply
    114,386.78x = 171,580.29 × 47,790.62
  4. Step 4: Simplify right side
    114,386.78x = 8,199,928,438.88
  5. Step 5: Solve for x
    x = 8,199,928,438.88/114,386.78
  6. Step 6: Final answer
    x = 71,685.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.