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Finding the Fourth Proportional to 74,230.20, 111,345.30 and 65,014.20

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Solution

The fourth proportional to 74,230.20, 111,345.30 and 65,014.20 is: 97,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.20 : 111,345.30 = 65,014.20 : x
  2. Step 2: Convert to fraction form
    74,230.20/111,345.30 = 65,014.20/x
  3. Step 3: Cross multiply
    74,230.20x = 111,345.30 × 65,014.20
  4. Step 4: Simplify right side
    74,230.20x = 7,239,025,603.26
  5. Step 5: Solve for x
    x = 7,239,025,603.26/74,230.20
  6. Step 6: Final answer
    x = 97,521.30

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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.