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Finding the Fourth Proportional to 235,298.70, 324,712.62 and 127,870.02

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Solution

The fourth proportional to 235,298.70, 324,712.62 and 127,870.02 is: 176,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,298.70 : 324,712.62 = 127,870.02 : x
  2. Step 2: Convert to fraction form
    235,298.70/324,712.62 = 127,870.02/x
  3. Step 3: Cross multiply
    235,298.70x = 324,712.62 × 127,870.02
  4. Step 4: Simplify right side
    235,298.70x = 41,521,009,213.65
  5. Step 5: Solve for x
    x = 41,521,009,213.65/235,298.70
  6. Step 6: Final answer
    x = 176,460.85

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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.