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Finding the Fourth Proportional to 336,459.10, 504,739.13 and 108,678.63

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Solution

The fourth proportional to 336,459.10, 504,739.13 and 108,678.63 is: 163,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,459.10 : 504,739.13 = 108,678.63 : x
  2. Step 2: Convert to fraction form
    336,459.10/504,739.13 = 108,678.63/x
  3. Step 3: Cross multiply
    336,459.10x = 504,739.13 × 108,678.63
  4. Step 4: Simplify right side
    336,459.10x = 54,854,357,155.79
  5. Step 5: Solve for x
    x = 54,854,357,155.79/336,459.10
  6. Step 6: Final answer
    x = 163,034.25

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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.