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Finding the Fourth Proportional to 144,051.86, 198,802.59 and 79,533.54

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Solution

The fourth proportional to 144,051.86, 198,802.59 and 79,533.54 is: 109,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,051.86 : 198,802.59 = 79,533.54 : x
  2. Step 2: Convert to fraction form
    144,051.86/198,802.59 = 79,533.54/x
  3. Step 3: Cross multiply
    144,051.86x = 198,802.59 × 79,533.54
  4. Step 4: Simplify right side
    144,051.86x = 15,811,473,445.62
  5. Step 5: Solve for x
    x = 15,811,473,445.62/144,051.86
  6. Step 6: Final answer
    x = 109,762.37

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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.