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Finding the Fourth Proportional to 192,140.10, 288,210.15 and 168,812.10

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Solution

The fourth proportional to 192,140.10, 288,210.15 and 168,812.10 is: 253,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,140.10 : 288,210.15 = 168,812.10 : x
  2. Step 2: Convert to fraction form
    192,140.10/288,210.15 = 168,812.10/x
  3. Step 3: Cross multiply
    192,140.10x = 288,210.15 × 168,812.10
  4. Step 4: Simplify right side
    192,140.10x = 48,653,360,662.82
  5. Step 5: Solve for x
    x = 48,653,360,662.82/192,140.10
  6. Step 6: Final answer
    x = 253,218.15

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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.