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Finding the Fourth Proportional to 343,718.04, 515,454.01 and 119,018.17

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Solution

The fourth proportional to 343,718.04, 515,454.01 and 119,018.17 is: 178,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,718.04 : 515,454.01 = 119,018.17 : x
  2. Step 2: Convert to fraction form
    343,718.04/515,454.01 = 119,018.17/x
  3. Step 3: Cross multiply
    343,718.04x = 515,454.01 × 119,018.17
  4. Step 4: Simplify right side
    343,718.04x = 61,348,392,989.36
  5. Step 5: Solve for x
    x = 61,348,392,989.36/343,718.04
  6. Step 6: Final answer
    x = 178,484.65

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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.