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Finding the Fourth Proportional to 183,412.92, 253,108.86 and 102,840.36

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Solution

The fourth proportional to 183,412.92, 253,108.86 and 102,840.36 is: 141,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,412.92 : 253,108.86 = 102,840.36 : x
  2. Step 2: Convert to fraction form
    183,412.92/253,108.86 = 102,840.36/x
  3. Step 3: Cross multiply
    183,412.92x = 253,108.86 × 102,840.36
  4. Step 4: Simplify right side
    183,412.92x = 26,029,806,281.59
  5. Step 5: Solve for x
    x = 26,029,806,281.59/183,412.92
  6. Step 6: Final answer
    x = 141,919.15

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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.