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Finding the Fourth Proportional to 425,606.10, 638,357.13 and 110,036.58

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Solution

The fourth proportional to 425,606.10, 638,357.13 and 110,036.58 is: 165,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,606.10 : 638,357.13 = 110,036.58 : x
  2. Step 2: Convert to fraction form
    425,606.10/638,357.13 = 110,036.58/x
  3. Step 3: Cross multiply
    425,606.10x = 638,357.13 × 110,036.58
  4. Step 4: Simplify right side
    425,606.10x = 70,242,635,403.82
  5. Step 5: Solve for x
    x = 70,242,635,403.82/425,606.10
  6. Step 6: Final answer
    x = 165,041.42

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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.