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Finding the Fourth Proportional to 210,526.56, 290,486.52 and 125,651.52

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Solution

The fourth proportional to 210,526.56, 290,486.52 and 125,651.52 is: 173,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,526.56 : 290,486.52 = 125,651.52 : x
  2. Step 2: Convert to fraction form
    210,526.56/290,486.52 = 125,651.52/x
  3. Step 3: Cross multiply
    210,526.56x = 290,486.52 × 125,651.52
  4. Step 4: Simplify right side
    210,526.56x = 36,500,072,777.51
  5. Step 5: Solve for x
    x = 36,500,072,777.51/210,526.56
  6. Step 6: Final answer
    x = 173,375.14

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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.