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Finding the Fourth Proportional to 161,653.01, 242,486.19 and 61,820.51

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Solution

The fourth proportional to 161,653.01, 242,486.19 and 61,820.51 is: 92,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,653.01 : 242,486.19 = 61,820.51 : x
  2. Step 2: Convert to fraction form
    161,653.01/242,486.19 = 61,820.51/x
  3. Step 3: Cross multiply
    161,653.01x = 242,486.19 × 61,820.51
  4. Step 4: Simplify right side
    161,653.01x = 14,990,618,721.33
  5. Step 5: Solve for x
    x = 14,990,618,721.33/161,653.01
  6. Step 6: Final answer
    x = 92,733.31

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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.