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Finding the Fourth Proportional to 118,452.53, 163,448.74 and 76,068.47

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Solution

The fourth proportional to 118,452.53, 163,448.74 and 76,068.47 is: 104,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,452.53 : 163,448.74 = 76,068.47 : x
  2. Step 2: Convert to fraction form
    118,452.53/163,448.74 = 76,068.47/x
  3. Step 3: Cross multiply
    118,452.53x = 163,448.74 × 76,068.47
  4. Step 4: Simplify right side
    118,452.53x = 12,433,295,575.23
  5. Step 5: Solve for x
    x = 12,433,295,575.23/118,452.53
  6. Step 6: Final answer
    x = 104,964.37

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1.5x scale

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.