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Finding the Fourth Proportional to 210,858.52, 290,956.02 and 125,957.56

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Solution

The fourth proportional to 210,858.52, 290,956.02 and 125,957.56 is: 173,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,858.52 : 290,956.02 = 125,957.56 : x
  2. Step 2: Convert to fraction form
    210,858.52/290,956.02 = 125,957.56/x
  3. Step 3: Cross multiply
    210,858.52x = 290,956.02 × 125,957.56
  4. Step 4: Simplify right side
    210,858.52x = 36,648,110,346.51
  5. Step 5: Solve for x
    x = 36,648,110,346.51/210,858.52
  6. Step 6: Final answer
    x = 173,804.27

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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.