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Finding the Fourth Proportional to 144,349.62, 199,194.36 and 79,815.10

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Solution

The fourth proportional to 144,349.62, 199,194.36 and 79,815.10 is: 110,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,349.62 : 199,194.36 = 79,815.10 : x
  2. Step 2: Convert to fraction form
    144,349.62/199,194.36 = 79,815.10/x
  3. Step 3: Cross multiply
    144,349.62x = 199,194.36 × 79,815.10
  4. Step 4: Simplify right side
    144,349.62x = 15,898,717,762.84
  5. Step 5: Solve for x
    x = 15,898,717,762.84/144,349.62
  6. Step 6: Final answer
    x = 110,140.35

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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.