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Finding the Fourth Proportional to 403,316.99, 604,971.37 and 103,796.40

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Solution

The fourth proportional to 403,316.99, 604,971.37 and 103,796.40 is: 155,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,316.99 : 604,971.37 = 103,796.40 : x
  2. Step 2: Convert to fraction form
    403,316.99/604,971.37 = 103,796.40/x
  3. Step 3: Cross multiply
    403,316.99x = 604,971.37 × 103,796.40
  4. Step 4: Simplify right side
    403,316.99x = 62,793,850,309.07
  5. Step 5: Solve for x
    x = 62,793,850,309.07/403,316.99
  6. Step 6: Final answer
    x = 155,693.54

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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.