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Finding the Fourth Proportional to 104,609.04, 144,354.48 and 56,862

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Solution

The fourth proportional to 104,609.04, 144,354.48 and 56,862 is: 78,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,609.04 : 144,354.48 = 56,862 : x
  2. Step 2: Convert to fraction form
    104,609.04/144,354.48 = 56,862/x
  3. Step 3: Cross multiply
    104,609.04x = 144,354.48 × 56,862
  4. Step 4: Simplify right side
    104,609.04x = 8,208,284,441.76
  5. Step 5: Solve for x
    x = 8,208,284,441.76/104,609.04
  6. Step 6: Final answer
    x = 78,466.30

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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.