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Finding the Fourth Proportional to 343,448.90, 514,809.75 and 115,527.54

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Solution

The fourth proportional to 343,448.90, 514,809.75 and 115,527.54 is: 173,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,448.90 : 514,809.75 = 115,527.54 : x
  2. Step 2: Convert to fraction form
    343,448.90/514,809.75 = 115,527.54/x
  3. Step 3: Cross multiply
    343,448.90x = 514,809.75 × 115,527.54
  4. Step 4: Simplify right side
    343,448.90x = 59,474,703,985.52
  5. Step 5: Solve for x
    x = 59,474,703,985.52/343,448.90
  6. Step 6: Final answer
    x = 173,169.00

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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.