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Finding the Fourth Proportional to 253,536.89, 349,888.41 and 140,359.64

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Solution

The fourth proportional to 253,536.89, 349,888.41 and 140,359.64 is: 193,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,536.89 : 349,888.41 = 140,359.64 : x
  2. Step 2: Convert to fraction form
    253,536.89/349,888.41 = 140,359.64/x
  3. Step 3: Cross multiply
    253,536.89x = 349,888.41 × 140,359.64
  4. Step 4: Simplify right side
    253,536.89x = 49,110,209,518.33
  5. Step 5: Solve for x
    x = 49,110,209,518.33/253,536.89
  6. Step 6: Final answer
    x = 193,700.45

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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.