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Finding the Fourth Proportional to 79,403.64, 118,949.74 and 46,053.65

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Solution

The fourth proportional to 79,403.64, 118,949.74 and 46,053.65 is: 68,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,403.64 : 118,949.74 = 46,053.65 : x
  2. Step 2: Convert to fraction form
    79,403.64/118,949.74 = 46,053.65/x
  3. Step 3: Cross multiply
    79,403.64x = 118,949.74 × 46,053.65
  4. Step 4: Simplify right side
    79,403.64x = 5,478,069,693.55
  5. Step 5: Solve for x
    x = 5,478,069,693.55/79,403.64
  6. Step 6: Final answer
    x = 68,990.16

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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.