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Finding the Fourth Proportional to 217,095.80, 325,643.70 and 164,607.80

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Solution

The fourth proportional to 217,095.80, 325,643.70 and 164,607.80 is: 246,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,095.80 : 325,643.70 = 164,607.80 : x
  2. Step 2: Convert to fraction form
    217,095.80/325,643.70 = 164,607.80/x
  3. Step 3: Cross multiply
    217,095.80x = 325,643.70 × 164,607.80
  4. Step 4: Simplify right side
    217,095.80x = 53,603,493,040.86
  5. Step 5: Solve for x
    x = 53,603,493,040.86/217,095.80
  6. Step 6: Final answer
    x = 246,911.70

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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.