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Finding the Fourth Proportional to 403,239.41, 604,860.70 and 163,357.85

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Solution

The fourth proportional to 403,239.41, 604,860.70 and 163,357.85 is: 245,037.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,239.41 : 604,860.70 = 163,357.85 : x
  2. Step 2: Convert to fraction form
    403,239.41/604,860.70 = 163,357.85/x
  3. Step 3: Cross multiply
    403,239.41x = 604,860.70 × 163,357.85
  4. Step 4: Simplify right side
    403,239.41x = 98,808,743,501.50
  5. Step 5: Solve for x
    x = 98,808,743,501.50/403,239.41
  6. Step 6: Final answer
    x = 245,037.42

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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.