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Finding the Fourth Proportional to 74,124.40, 110,923.96 and 65,376.40

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Solution

The fourth proportional to 74,124.40, 110,923.96 and 65,376.40 is: 97,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.40 : 110,923.96 = 65,376.40 : x
  2. Step 2: Convert to fraction form
    74,124.40/110,923.96 = 65,376.40/x
  3. Step 3: Cross multiply
    74,124.40x = 110,923.96 × 65,376.40
  4. Step 4: Simplify right side
    74,124.40x = 7,251,809,178.54
  5. Step 5: Solve for x
    x = 7,251,809,178.54/74,124.40
  6. Step 6: Final answer
    x = 97,832.96

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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.