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Finding the Fourth Proportional to 125,572.74, 188,118.51 and 121,351.83

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Solution

The fourth proportional to 125,572.74, 188,118.51 and 121,351.83 is: 181,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,572.74 : 188,118.51 = 121,351.83 : x
  2. Step 2: Convert to fraction form
    125,572.74/188,118.51 = 121,351.83/x
  3. Step 3: Cross multiply
    125,572.74x = 188,118.51 × 121,351.83
  4. Step 4: Simplify right side
    125,572.74x = 22,828,525,445.37
  5. Step 5: Solve for x
    x = 22,828,525,445.37/125,572.74
  6. Step 6: Final answer
    x = 181,795.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.