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Finding the Fourth Proportional to 223,358.94, 308,242.76 and 131,461.57

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Solution

The fourth proportional to 223,358.94, 308,242.76 and 131,461.57 is: 181,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,358.94 : 308,242.76 = 131,461.57 : x
  2. Step 2: Convert to fraction form
    223,358.94/308,242.76 = 131,461.57/x
  3. Step 3: Cross multiply
    223,358.94x = 308,242.76 × 131,461.57
  4. Step 4: Simplify right side
    223,358.94x = 40,522,077,499.39
  5. Step 5: Solve for x
    x = 40,522,077,499.39/223,358.94
  6. Step 6: Final answer
    x = 181,421.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.