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Finding the Fourth Proportional to 381,793.14, 526,877.73 and 212,030.10

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Solution

The fourth proportional to 381,793.14, 526,877.73 and 212,030.10 is: 292,603.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,793.14 : 526,877.73 = 212,030.10 : x
  2. Step 2: Convert to fraction form
    381,793.14/526,877.73 = 212,030.10/x
  3. Step 3: Cross multiply
    381,793.14x = 526,877.73 × 212,030.10
  4. Step 4: Simplify right side
    381,793.14x = 111,713,937,779.67
  5. Step 5: Solve for x
    x = 111,713,937,779.67/381,793.14
  6. Step 6: Final answer
    x = 292,603.31

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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.