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Finding the Fourth Proportional to 215,133.90, 322,117.65 and 168,477.90

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Solution

The fourth proportional to 215,133.90, 322,117.65 and 168,477.90 is: 252,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,133.90 : 322,117.65 = 168,477.90 : x
  2. Step 2: Convert to fraction form
    215,133.90/322,117.65 = 168,477.90/x
  3. Step 3: Cross multiply
    215,133.90x = 322,117.65 × 168,477.90
  4. Step 4: Simplify right side
    215,133.90x = 54,269,705,224.94
  5. Step 5: Solve for x
    x = 54,269,705,224.94/215,133.90
  6. Step 6: Final answer
    x = 252,260.13

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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.