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Finding the Fourth Proportional to 74,300.40, 111,450.60 and 70,844.40

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Solution

The fourth proportional to 74,300.40, 111,450.60 and 70,844.40 is: 106,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,300.40 : 111,450.60 = 70,844.40 : x
  2. Step 2: Convert to fraction form
    74,300.40/111,450.60 = 70,844.40/x
  3. Step 3: Cross multiply
    74,300.40x = 111,450.60 × 70,844.40
  4. Step 4: Simplify right side
    74,300.40x = 7,895,650,886.64
  5. Step 5: Solve for x
    x = 7,895,650,886.64/74,300.40
  6. Step 6: Final answer
    x = 106,266.60

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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.