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Finding the Fourth Proportional to 74,698.20, 112,047.30 and 73,402.20

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Solution

The fourth proportional to 74,698.20, 112,047.30 and 73,402.20 is: 110,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,698.20 : 112,047.30 = 73,402.20 : x
  2. Step 2: Convert to fraction form
    74,698.20/112,047.30 = 73,402.20/x
  3. Step 3: Cross multiply
    74,698.20x = 112,047.30 × 73,402.20
  4. Step 4: Simplify right side
    74,698.20x = 8,224,518,324.06
  5. Step 5: Solve for x
    x = 8,224,518,324.06/74,698.20
  6. Step 6: Final answer
    x = 110,103.30

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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.