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Finding the Fourth Proportional to 549,387.12, 824,208.48 and 170,287.74

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Solution

The fourth proportional to 549,387.12, 824,208.48 and 170,287.74 is: 255,471.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,387.12 : 824,208.48 = 170,287.74 : x
  2. Step 2: Convert to fraction form
    549,387.12/824,208.48 = 170,287.74/x
  3. Step 3: Cross multiply
    549,387.12x = 824,208.48 × 170,287.74
  4. Step 4: Simplify right side
    549,387.12x = 140,352,599,348.04
  5. Step 5: Solve for x
    x = 140,352,599,348.04/549,387.12
  6. Step 6: Final answer
    x = 255,471.22

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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.