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Finding the Fourth Proportional to 74,246.40, 111,369.60 and 70,617.60

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Solution

The fourth proportional to 74,246.40, 111,369.60 and 70,617.60 is: 105,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,246.40 : 111,369.60 = 70,617.60 : x
  2. Step 2: Convert to fraction form
    74,246.40/111,369.60 = 70,617.60/x
  3. Step 3: Cross multiply
    74,246.40x = 111,369.60 × 70,617.60
  4. Step 4: Simplify right side
    74,246.40x = 7,864,653,864.96
  5. Step 5: Solve for x
    x = 7,864,653,864.96/74,246.40
  6. Step 6: Final answer
    x = 105,926.40

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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.