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Finding the Fourth Proportional to 217,285.50, 325,981.50 and 175,543.77

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Solution

The fourth proportional to 217,285.50, 325,981.50 and 175,543.77 is: 263,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,285.50 : 325,981.50 = 175,543.77 : x
  2. Step 2: Convert to fraction form
    217,285.50/325,981.50 = 175,543.77/x
  3. Step 3: Cross multiply
    217,285.50x = 325,981.50 × 175,543.77
  4. Step 4: Simplify right side
    217,285.50x = 57,224,021,460.26
  5. Step 5: Solve for x
    x = 57,224,021,460.26/217,285.50
  6. Step 6: Final answer
    x = 263,358.68

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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.