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Finding the Fourth Proportional to 187,718.50, 259,051.53 and 112,267

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Solution

The fourth proportional to 187,718.50, 259,051.53 and 112,267 is: 154,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,718.50 : 259,051.53 = 112,267 : x
  2. Step 2: Convert to fraction form
    187,718.50/259,051.53 = 112,267/x
  3. Step 3: Cross multiply
    187,718.50x = 259,051.53 × 112,267
  4. Step 4: Simplify right side
    187,718.50x = 29,082,938,118.51
  5. Step 5: Solve for x
    x = 29,082,938,118.51/187,718.50
  6. Step 6: Final answer
    x = 154,928.46

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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.