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Finding the Fourth Proportional to 74,175.60, 111,263.40 and 29,809.20

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Solution

The fourth proportional to 74,175.60, 111,263.40 and 29,809.20 is: 44,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.60 : 111,263.40 = 29,809.20 : x
  2. Step 2: Convert to fraction form
    74,175.60/111,263.40 = 29,809.20/x
  3. Step 3: Cross multiply
    74,175.60x = 111,263.40 × 29,809.20
  4. Step 4: Simplify right side
    74,175.60x = 3,316,672,943.28
  5. Step 5: Solve for x
    x = 3,316,672,943.28/74,175.60
  6. Step 6: Final answer
    x = 44,713.80

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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.