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Finding the Fourth Proportional to 74,708.40, 112,062.60 and 27,323.40

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Solution

The fourth proportional to 74,708.40, 112,062.60 and 27,323.40 is: 40,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.40 : 112,062.60 = 27,323.40 : x
  2. Step 2: Convert to fraction form
    74,708.40/112,062.60 = 27,323.40/x
  3. Step 3: Cross multiply
    74,708.40x = 112,062.60 × 27,323.40
  4. Step 4: Simplify right side
    74,708.40x = 3,061,931,244.84
  5. Step 5: Solve for x
    x = 3,061,931,244.84/74,708.40
  6. Step 6: Final answer
    x = 40,985.10

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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.