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Finding the Fourth Proportional to 305,060.94, 420,841.71 and 191,946.06

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Solution

The fourth proportional to 305,060.94, 420,841.71 and 191,946.06 is: 264,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,060.94 : 420,841.71 = 191,946.06 : x
  2. Step 2: Convert to fraction form
    305,060.94/420,841.71 = 191,946.06/x
  3. Step 3: Cross multiply
    305,060.94x = 420,841.71 × 191,946.06
  4. Step 4: Simplify right side
    305,060.94x = 80,778,908,118.16
  5. Step 5: Solve for x
    x = 80,778,908,118.16/305,060.94
  6. Step 6: Final answer
    x = 264,795.97

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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.