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Finding the Fourth Proportional to 215,468.16, 323,219.52 and 57,695.28

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Solution

The fourth proportional to 215,468.16, 323,219.52 and 57,695.28 is: 86,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,468.16 : 323,219.52 = 57,695.28 : x
  2. Step 2: Convert to fraction form
    215,468.16/323,219.52 = 57,695.28/x
  3. Step 3: Cross multiply
    215,468.16x = 323,219.52 × 57,695.28
  4. Step 4: Simplify right side
    215,468.16x = 18,648,240,707.87
  5. Step 5: Solve for x
    x = 18,648,240,707.87/215,468.16
  6. Step 6: Final answer
    x = 86,547.55

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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.