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Finding the Fourth Proportional to 117,327.42, 175,913.40 and 42,437.71

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Solution

The fourth proportional to 117,327.42, 175,913.40 and 42,437.71 is: 63,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,327.42 : 175,913.40 = 42,437.71 : x
  2. Step 2: Convert to fraction form
    117,327.42/175,913.40 = 42,437.71/x
  3. Step 3: Cross multiply
    117,327.42x = 175,913.40 × 42,437.71
  4. Step 4: Simplify right side
    117,327.42x = 7,465,361,627.90
  5. Step 5: Solve for x
    x = 7,465,361,627.90/117,327.42
  6. Step 6: Final answer
    x = 63,628.45

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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.