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Finding the Fourth Proportional to 315,459.46, 435,372.25 and 179,526.47

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Solution

The fourth proportional to 315,459.46, 435,372.25 and 179,526.47 is: 247,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,459.46 : 435,372.25 = 179,526.47 : x
  2. Step 2: Convert to fraction form
    315,459.46/435,372.25 = 179,526.47/x
  3. Step 3: Cross multiply
    315,459.46x = 435,372.25 × 179,526.47
  4. Step 4: Simplify right side
    315,459.46x = 78,160,843,178.46
  5. Step 5: Solve for x
    x = 78,160,843,178.46/315,459.46
  6. Step 6: Final answer
    x = 247,768.27

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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.