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Finding the Fourth Proportional to 393,159.79, 589,740.14 and 119,608.23

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Solution

The fourth proportional to 393,159.79, 589,740.14 and 119,608.23 is: 179,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,159.79 : 589,740.14 = 119,608.23 : x
  2. Step 2: Convert to fraction form
    393,159.79/589,740.14 = 119,608.23/x
  3. Step 3: Cross multiply
    393,159.79x = 589,740.14 × 119,608.23
  4. Step 4: Simplify right side
    393,159.79x = 70,537,774,305.35
  5. Step 5: Solve for x
    x = 70,537,774,305.35/393,159.79
  6. Step 6: Final answer
    x = 179,412.48

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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.