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Finding the Fourth Proportional to 70,136.34, 105,229.08 and 43,810.26

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Solution

The fourth proportional to 70,136.34, 105,229.08 and 43,810.26 is: 65,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136.34 : 105,229.08 = 43,810.26 : x
  2. Step 2: Convert to fraction form
    70,136.34/105,229.08 = 43,810.26/x
  3. Step 3: Cross multiply
    70,136.34x = 105,229.08 × 43,810.26
  4. Step 4: Simplify right side
    70,136.34x = 4,610,113,354.36
  5. Step 5: Solve for x
    x = 4,610,113,354.36/70,136.34
  6. Step 6: Final answer
    x = 65,730.74

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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.