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Finding the Fourth Proportional to 219,592.58, 329,421.65 and 69,837.75

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Solution

The fourth proportional to 219,592.58, 329,421.65 and 69,837.75 is: 104,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592.58 : 329,421.65 = 69,837.75 : x
  2. Step 2: Convert to fraction form
    219,592.58/329,421.65 = 69,837.75/x
  3. Step 3: Cross multiply
    219,592.58x = 329,421.65 × 69,837.75
  4. Step 4: Simplify right side
    219,592.58x = 23,006,066,488.10
  5. Step 5: Solve for x
    x = 23,006,066,488.10/219,592.58
  6. Step 6: Final answer
    x = 104,767.05

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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.