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Finding the Fourth Proportional to 69,341.90, 104,071.20 and 64,967.90

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Solution

The fourth proportional to 69,341.90, 104,071.20 and 64,967.90 is: 97,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,341.90 : 104,071.20 = 64,967.90 : x
  2. Step 2: Convert to fraction form
    69,341.90/104,071.20 = 64,967.90/x
  3. Step 3: Cross multiply
    69,341.90x = 104,071.20 × 64,967.90
  4. Step 4: Simplify right side
    69,341.90x = 6,761,287,314.48
  5. Step 5: Solve for x
    x = 6,761,287,314.48/69,341.90
  6. Step 6: Final answer
    x = 97,506.52

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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.