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Finding the Fourth Proportional to 351,681.84, 527,521.01 and 127,042.11

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Solution

The fourth proportional to 351,681.84, 527,521.01 and 127,042.11 is: 190,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,681.84 : 527,521.01 = 127,042.11 : x
  2. Step 2: Convert to fraction form
    351,681.84/527,521.01 = 127,042.11/x
  3. Step 3: Cross multiply
    351,681.84x = 527,521.01 × 127,042.11
  4. Step 4: Simplify right side
    351,681.84x = 67,017,381,544.52
  5. Step 5: Solve for x
    x = 67,017,381,544.52/351,681.84
  6. Step 6: Final answer
    x = 190,562.53

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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.