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Finding the Fourth Proportional to 74,602.11, 111,903.18 and 71,362.63

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Solution

The fourth proportional to 74,602.11, 111,903.18 and 71,362.63 is: 107,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602.11 : 111,903.18 = 71,362.63 : x
  2. Step 2: Convert to fraction form
    74,602.11/111,903.18 = 71,362.63/x
  3. Step 3: Cross multiply
    74,602.11x = 111,903.18 × 71,362.63
  4. Step 4: Simplify right side
    74,602.11x = 7,985,705,230.16
  5. Step 5: Solve for x
    x = 7,985,705,230.16/74,602.11
  6. Step 6: Final answer
    x = 107,043.96

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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.