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Finding the Fourth Proportional to 79,291.19, 118,979.85 and 46,035.16

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Solution

The fourth proportional to 79,291.19, 118,979.85 and 46,035.16 is: 69,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,291.19 : 118,979.85 = 46,035.16 : x
  2. Step 2: Convert to fraction form
    79,291.19/118,979.85 = 46,035.16/x
  3. Step 3: Cross multiply
    79,291.19x = 118,979.85 × 46,035.16
  4. Step 4: Simplify right side
    79,291.19x = 5,477,256,431.53
  5. Step 5: Solve for x
    x = 5,477,256,431.53/79,291.19
  6. Step 6: Final answer
    x = 69,077.74

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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.