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Finding the Fourth Proportional to 215,054.40, 322,646.40 and 152,846.40

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Solution

The fourth proportional to 215,054.40, 322,646.40 and 152,846.40 is: 229,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,054.40 : 322,646.40 = 152,846.40 : x
  2. Step 2: Convert to fraction form
    215,054.40/322,646.40 = 152,846.40/x
  3. Step 3: Cross multiply
    215,054.40x = 322,646.40 × 152,846.40
  4. Step 4: Simplify right side
    215,054.40x = 49,315,340,712.96
  5. Step 5: Solve for x
    x = 49,315,340,712.96/215,054.40
  6. Step 6: Final answer
    x = 229,315.66

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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.