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Finding the Fourth Proportional to 328,897.55, 453,878.61 and 177,994.55

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Solution

The fourth proportional to 328,897.55, 453,878.61 and 177,994.55 is: 245,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,897.55 : 453,878.61 = 177,994.55 : x
  2. Step 2: Convert to fraction form
    328,897.55/453,878.61 = 177,994.55/x
  3. Step 3: Cross multiply
    328,897.55x = 453,878.61 × 177,994.55
  4. Step 4: Simplify right side
    328,897.55x = 80,787,918,941.58
  5. Step 5: Solve for x
    x = 80,787,918,941.58/328,897.55
  6. Step 6: Final answer
    x = 245,632.47

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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.