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Finding the Fourth Proportional to 338,931.61, 467,300.07 and 248,129.93

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Solution

The fourth proportional to 338,931.61, 467,300.07 and 248,129.93 is: 342,107.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,931.61 : 467,300.07 = 248,129.93 : x
  2. Step 2: Convert to fraction form
    338,931.61/467,300.07 = 248,129.93/x
  3. Step 3: Cross multiply
    338,931.61x = 467,300.07 × 248,129.93
  4. Step 4: Simplify right side
    338,931.61x = 115,951,134,826.35
  5. Step 5: Solve for x
    x = 115,951,134,826.35/338,931.61
  6. Step 6: Final answer
    x = 342,107.77

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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.