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Finding the Fourth Proportional to 215,551.16, 297,460.68 and 124,959.64

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Solution

The fourth proportional to 215,551.16, 297,460.68 and 124,959.64 is: 172,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,551.16 : 297,460.68 = 124,959.64 : x
  2. Step 2: Convert to fraction form
    215,551.16/297,460.68 = 124,959.64/x
  3. Step 3: Cross multiply
    215,551.16x = 297,460.68 × 124,959.64
  4. Step 4: Simplify right side
    215,551.16x = 37,170,579,858.78
  5. Step 5: Solve for x
    x = 37,170,579,858.78/215,551.16
  6. Step 6: Final answer
    x = 172,444.35

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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.