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Finding the Fourth Proportional to 103,459.44, 155,266.44 and 70,100.40

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Solution

The fourth proportional to 103,459.44, 155,266.44 and 70,100.40 is: 105,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,459.44 : 155,266.44 = 70,100.40 : x
  2. Step 2: Convert to fraction form
    103,459.44/155,266.44 = 70,100.40/x
  3. Step 3: Cross multiply
    103,459.44x = 155,266.44 × 70,100.40
  4. Step 4: Simplify right side
    103,459.44x = 10,884,239,550.58
  5. Step 5: Solve for x
    x = 10,884,239,550.58/103,459.44
  6. Step 6: Final answer
    x = 105,202.96

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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.