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Finding the Fourth Proportional to 191,309.76, 286,903.80 and 63,197.64

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Solution

The fourth proportional to 191,309.76, 286,903.80 and 63,197.64 is: 94,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,309.76 : 286,903.80 = 63,197.64 : x
  2. Step 2: Convert to fraction form
    191,309.76/286,903.80 = 63,197.64/x
  3. Step 3: Cross multiply
    191,309.76x = 286,903.80 × 63,197.64
  4. Step 4: Simplify right side
    191,309.76x = 18,131,643,067.03
  5. Step 5: Solve for x
    x = 18,131,643,067.03/191,309.76
  6. Step 6: Final answer
    x = 94,776.36

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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.