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Finding the Fourth Proportional to 74,653, 103,023.30 and 41,121.16

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Solution

The fourth proportional to 74,653, 103,023.30 and 41,121.16 is: 56,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,653 : 103,023.30 = 41,121.16 : x
  2. Step 2: Convert to fraction form
    74,653/103,023.30 = 41,121.16/x
  3. Step 3: Cross multiply
    74,653x = 103,023.30 × 41,121.16
  4. Step 4: Simplify right side
    74,653x = 4,236,437,603.03
  5. Step 5: Solve for x
    x = 4,236,437,603.03/74,653
  6. Step 6: Final answer
    x = 56,748.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.