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Finding the Fourth Proportional to 342,868.04, 473,055.54 and 221,817.59

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Solution

The fourth proportional to 342,868.04, 473,055.54 and 221,817.59 is: 306,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,868.04 : 473,055.54 = 221,817.59 : x
  2. Step 2: Convert to fraction form
    342,868.04/473,055.54 = 221,817.59/x
  3. Step 3: Cross multiply
    342,868.04x = 473,055.54 × 221,817.59
  4. Step 4: Simplify right side
    342,868.04x = 104,932,039,643.54
  5. Step 5: Solve for x
    x = 104,932,039,643.54/342,868.04
  6. Step 6: Final answer
    x = 306,042.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.