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Finding the Fourth Proportional to 110,280.60, 165,420.90 and 70,914.60

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Solution

The fourth proportional to 110,280.60, 165,420.90 and 70,914.60 is: 106,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,280.60 : 165,420.90 = 70,914.60 : x
  2. Step 2: Convert to fraction form
    110,280.60/165,420.90 = 70,914.60/x
  3. Step 3: Cross multiply
    110,280.60x = 165,420.90 × 70,914.60
  4. Step 4: Simplify right side
    110,280.60x = 11,730,756,955.14
  5. Step 5: Solve for x
    x = 11,730,756,955.14/110,280.60
  6. Step 6: Final answer
    x = 106,371.90

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1.5x scale

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.