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Finding the Fourth Proportional to 217,070.80, 325,606.20 and 195,643.60

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Solution

The fourth proportional to 217,070.80, 325,606.20 and 195,643.60 is: 293,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,070.80 : 325,606.20 = 195,643.60 : x
  2. Step 2: Convert to fraction form
    217,070.80/325,606.20 = 195,643.60/x
  3. Step 3: Cross multiply
    217,070.80x = 325,606.20 × 195,643.60
  4. Step 4: Simplify right side
    217,070.80x = 63,702,769,150.32
  5. Step 5: Solve for x
    x = 63,702,769,150.32/217,070.80
  6. Step 6: Final answer
    x = 293,465.40

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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.