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Finding the Fourth Proportional to 549,721.49, 824,754.42 and 165,485.57

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Solution

The fourth proportional to 549,721.49, 824,754.42 and 165,485.57 is: 248,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,721.49 : 824,754.42 = 165,485.57 : x
  2. Step 2: Convert to fraction form
    549,721.49/824,754.42 = 165,485.57/x
  3. Step 3: Cross multiply
    549,721.49x = 824,754.42 × 165,485.57
  4. Step 4: Simplify right side
    549,721.49x = 136,484,951,179.95
  5. Step 5: Solve for x
    x = 136,484,951,179.95/549,721.49
  6. Step 6: Final answer
    x = 248,280.18

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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.