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Finding the Fourth Proportional to 354,674.40, 532,157.40 and 130,142.40

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Solution

The fourth proportional to 354,674.40, 532,157.40 and 130,142.40 is: 195,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,674.40 : 532,157.40 = 130,142.40 : x
  2. Step 2: Convert to fraction form
    354,674.40/532,157.40 = 130,142.40/x
  3. Step 3: Cross multiply
    354,674.40x = 532,157.40 × 130,142.40
  4. Step 4: Simplify right side
    354,674.40x = 69,256,241,213.76
  5. Step 5: Solve for x
    x = 69,256,241,213.76/354,674.40
  6. Step 6: Final answer
    x = 195,267.10

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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.