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Finding the Fourth Proportional to 403,303.54, 604,909.23 and 107,838.58

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Solution

The fourth proportional to 403,303.54, 604,909.23 and 107,838.58 is: 161,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,303.54 : 604,909.23 = 107,838.58 : x
  2. Step 2: Convert to fraction form
    403,303.54/604,909.23 = 107,838.58/x
  3. Step 3: Cross multiply
    403,303.54x = 604,909.23 × 107,838.58
  4. Step 4: Simplify right side
    403,303.54x = 65,232,552,392.09
  5. Step 5: Solve for x
    x = 65,232,552,392.09/403,303.54
  6. Step 6: Final answer
    x = 161,745.55

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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.