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Finding the Fourth Proportional to 210,703.44, 290,798.04 and 120,092.40

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Solution

The fourth proportional to 210,703.44, 290,798.04 and 120,092.40 is: 165,743.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,703.44 : 290,798.04 = 120,092.40 : x
  2. Step 2: Convert to fraction form
    210,703.44/290,798.04 = 120,092.40/x
  3. Step 3: Cross multiply
    210,703.44x = 290,798.04 × 120,092.40
  4. Step 4: Simplify right side
    210,703.44x = 34,922,634,538.90
  5. Step 5: Solve for x
    x = 34,922,634,538.90/210,703.44
  6. Step 6: Final answer
    x = 165,743.07

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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.