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Finding the Fourth Proportional to 202,293.80, 303,440.70 and 127,498.40

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Solution

The fourth proportional to 202,293.80, 303,440.70 and 127,498.40 is: 191,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,293.80 : 303,440.70 = 127,498.40 : x
  2. Step 2: Convert to fraction form
    202,293.80/303,440.70 = 127,498.40/x
  3. Step 3: Cross multiply
    202,293.80x = 303,440.70 × 127,498.40
  4. Step 4: Simplify right side
    202,293.80x = 38,688,203,744.88
  5. Step 5: Solve for x
    x = 38,688,203,744.88/202,293.80
  6. Step 6: Final answer
    x = 191,247.60

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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.