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Finding the Fourth Proportional to 343,816.06, 515,607.29 and 119,124.05

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Solution

The fourth proportional to 343,816.06, 515,607.29 and 119,124.05 is: 178,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,816.06 : 515,607.29 = 119,124.05 : x
  2. Step 2: Convert to fraction form
    343,816.06/515,607.29 = 119,124.05/x
  3. Step 3: Cross multiply
    343,816.06x = 515,607.29 × 119,124.05
  4. Step 4: Simplify right side
    343,816.06x = 61,421,228,296.51
  5. Step 5: Solve for x
    x = 61,421,228,296.51/343,816.06
  6. Step 6: Final answer
    x = 178,645.60

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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.