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Finding the Fourth Proportional to 315,210.11, 435,023.46 and 192,774.11

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Solution

The fourth proportional to 315,210.11, 435,023.46 and 192,774.11 is: 266,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,210.11 : 435,023.46 = 192,774.11 : x
  2. Step 2: Convert to fraction form
    315,210.11/435,023.46 = 192,774.11/x
  3. Step 3: Cross multiply
    315,210.11x = 435,023.46 × 192,774.11
  4. Step 4: Simplify right side
    315,210.11x = 83,861,261,418.18
  5. Step 5: Solve for x
    x = 83,861,261,418.18/315,210.11
  6. Step 6: Final answer
    x = 266,048.77

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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.