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Finding the Fourth Proportional to 223,441.20, 334,724.40 and 134,430.30

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Solution

The fourth proportional to 223,441.20, 334,724.40 and 134,430.30 is: 201,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,441.20 : 334,724.40 = 134,430.30 : x
  2. Step 2: Convert to fraction form
    223,441.20/334,724.40 = 134,430.30/x
  3. Step 3: Cross multiply
    223,441.20x = 334,724.40 × 134,430.30
  4. Step 4: Simplify right side
    223,441.20x = 44,997,101,509.32
  5. Step 5: Solve for x
    x = 44,997,101,509.32/223,441.20
  6. Step 6: Final answer
    x = 201,382.29

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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.