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Finding the Fourth Proportional to 344,653.40, 516,980.28 and 108,014.51

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Solution

The fourth proportional to 344,653.40, 516,980.28 and 108,014.51 is: 162,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,653.40 : 516,980.28 = 108,014.51 : x
  2. Step 2: Convert to fraction form
    344,653.40/516,980.28 = 108,014.51/x
  3. Step 3: Cross multiply
    344,653.40x = 516,980.28 × 108,014.51
  4. Step 4: Simplify right side
    344,653.40x = 55,841,371,623.86
  5. Step 5: Solve for x
    x = 55,841,371,623.86/344,653.40
  6. Step 6: Final answer
    x = 162,021.82

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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.