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Finding the Fourth Proportional to 69,347.90, 104,080.20 and 64,973.90

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Solution

The fourth proportional to 69,347.90, 104,080.20 and 64,973.90 is: 97,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,347.90 : 104,080.20 = 64,973.90 : x
  2. Step 2: Convert to fraction form
    69,347.90/104,080.20 = 64,973.90/x
  3. Step 3: Cross multiply
    69,347.90x = 104,080.20 × 64,973.90
  4. Step 4: Simplify right side
    69,347.90x = 6,762,496,506.78
  5. Step 5: Solve for x
    x = 6,762,496,506.78/69,347.90
  6. Step 6: Final answer
    x = 97,515.52

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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.