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Finding the Fourth Proportional to 403,750.67, 605,628.30 and 104,210.77

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Solution

The fourth proportional to 403,750.67, 605,628.30 and 104,210.77 is: 156,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,750.67 : 605,628.30 = 104,210.77 : x
  2. Step 2: Convert to fraction form
    403,750.67/605,628.30 = 104,210.77/x
  3. Step 3: Cross multiply
    403,750.67x = 605,628.30 × 104,210.77
  4. Step 4: Simplify right side
    403,750.67x = 63,112,990,955.74
  5. Step 5: Solve for x
    x = 63,112,990,955.74/403,750.67
  6. Step 6: Final answer
    x = 156,316.75

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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.