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Finding the Fourth Proportional to 310,603.29, 465,835.68 and 121,068.77

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Solution

The fourth proportional to 310,603.29, 465,835.68 and 121,068.77 is: 181,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,603.29 : 465,835.68 = 121,068.77 : x
  2. Step 2: Convert to fraction form
    310,603.29/465,835.68 = 121,068.77/x
  3. Step 3: Cross multiply
    310,603.29x = 465,835.68 × 121,068.77
  4. Step 4: Simplify right side
    310,603.29x = 56,398,150,470.54
  5. Step 5: Solve for x
    x = 56,398,150,470.54/310,603.29
  6. Step 6: Final answer
    x = 181,576.15

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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.