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Finding the Fourth Proportional to 101,655.20, 152,482.80 and 27,783.20

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Solution

The fourth proportional to 101,655.20, 152,482.80 and 27,783.20 is: 41,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,655.20 : 152,482.80 = 27,783.20 : x
  2. Step 2: Convert to fraction form
    101,655.20/152,482.80 = 27,783.20/x
  3. Step 3: Cross multiply
    101,655.20x = 152,482.80 × 27,783.20
  4. Step 4: Simplify right side
    101,655.20x = 4,236,460,128.96
  5. Step 5: Solve for x
    x = 4,236,460,128.96/101,655.20
  6. Step 6: Final answer
    x = 41,674.80

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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.