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Finding the Fourth Proportional to 188,256.71, 259,703.06 and 124,647.81

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Solution

The fourth proportional to 188,256.71, 259,703.06 and 124,647.81 is: 171,953.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,256.71 : 259,703.06 = 124,647.81 : x
  2. Step 2: Convert to fraction form
    188,256.71/259,703.06 = 124,647.81/x
  3. Step 3: Cross multiply
    188,256.71x = 259,703.06 × 124,647.81
  4. Step 4: Simplify right side
    188,256.71x = 32,371,417,056.06
  5. Step 5: Solve for x
    x = 32,371,417,056.06/188,256.71
  6. Step 6: Final answer
    x = 171,953.59

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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.