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Finding the Fourth Proportional to 202,317.90, 303,822.45 and 109,005.90

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Solution

The fourth proportional to 202,317.90, 303,822.45 and 109,005.90 is: 163,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,317.90 : 303,822.45 = 109,005.90 : x
  2. Step 2: Convert to fraction form
    202,317.90/303,822.45 = 109,005.90/x
  3. Step 3: Cross multiply
    202,317.90x = 303,822.45 × 109,005.90
  4. Step 4: Simplify right side
    202,317.90x = 33,118,439,602.46
  5. Step 5: Solve for x
    x = 33,118,439,602.46/202,317.90
  6. Step 6: Final answer
    x = 163,695.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.