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Finding the Fourth Proportional to 210,593.52, 290,526.55 and 125,661.38

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Solution

The fourth proportional to 210,593.52, 290,526.55 and 125,661.38 is: 173,357.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,593.52 : 290,526.55 = 125,661.38 : x
  2. Step 2: Convert to fraction form
    210,593.52/290,526.55 = 125,661.38/x
  3. Step 3: Cross multiply
    210,593.52x = 290,526.55 × 125,661.38
  4. Step 4: Simplify right side
    210,593.52x = 36,507,965,432.85
  5. Step 5: Solve for x
    x = 36,507,965,432.85/210,593.52
  6. Step 6: Final answer
    x = 173,357.50

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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.