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Finding the Fourth Proportional to 403,901.80, 605,852.70 and 119,602.60

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Solution

The fourth proportional to 403,901.80, 605,852.70 and 119,602.60 is: 179,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,901.80 : 605,852.70 = 119,602.60 : x
  2. Step 2: Convert to fraction form
    403,901.80/605,852.70 = 119,602.60/x
  3. Step 3: Cross multiply
    403,901.80x = 605,852.70 × 119,602.60
  4. Step 4: Simplify right side
    403,901.80x = 72,461,558,137.02
  5. Step 5: Solve for x
    x = 72,461,558,137.02/403,901.80
  6. Step 6: Final answer
    x = 179,403.90

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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.