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Finding the Fourth Proportional to 171,484.60, 257,226.90 and 115,497.40

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Solution

The fourth proportional to 171,484.60, 257,226.90 and 115,497.40 is: 173,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,484.60 : 257,226.90 = 115,497.40 : x
  2. Step 2: Convert to fraction form
    171,484.60/257,226.90 = 115,497.40/x
  3. Step 3: Cross multiply
    171,484.60x = 257,226.90 × 115,497.40
  4. Step 4: Simplify right side
    171,484.60x = 29,709,038,160.06
  5. Step 5: Solve for x
    x = 29,709,038,160.06/171,484.60
  6. Step 6: Final answer
    x = 173,246.10

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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.