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Finding the Fourth Proportional to 254,980.19, 351,891.80 and 153,010.10

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Solution

The fourth proportional to 254,980.19, 351,891.80 and 153,010.10 is: 211,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,980.19 : 351,891.80 = 153,010.10 : x
  2. Step 2: Convert to fraction form
    254,980.19/351,891.80 = 153,010.10/x
  3. Step 3: Cross multiply
    254,980.19x = 351,891.80 × 153,010.10
  4. Step 4: Simplify right side
    254,980.19x = 53,842,996,982.67
  5. Step 5: Solve for x
    x = 53,842,996,982.67/254,980.19
  6. Step 6: Final answer
    x = 211,165.42

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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.