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Finding the Fourth Proportional to 183,703.05, 253,492.71 and 103,112.10

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Solution

The fourth proportional to 183,703.05, 253,492.71 and 103,112.10 is: 142,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,703.05 : 253,492.71 = 103,112.10 : x
  2. Step 2: Convert to fraction form
    183,703.05/253,492.71 = 103,112.10/x
  3. Step 3: Cross multiply
    183,703.05x = 253,492.71 × 103,112.10
  4. Step 4: Simplify right side
    183,703.05x = 26,138,163,879.77
  5. Step 5: Solve for x
    x = 26,138,163,879.77/183,703.05
  6. Step 6: Final answer
    x = 142,284.87

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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.