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Finding the Fourth Proportional to 144,605.94, 216,879.75 and 39,411.24

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Solution

The fourth proportional to 144,605.94, 216,879.75 and 39,411.24 is: 59,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,605.94 : 216,879.75 = 39,411.24 : x
  2. Step 2: Convert to fraction form
    144,605.94/216,879.75 = 39,411.24/x
  3. Step 3: Cross multiply
    144,605.94x = 216,879.75 × 39,411.24
  4. Step 4: Simplify right side
    144,605.94x = 8,547,499,878.39
  5. Step 5: Solve for x
    x = 8,547,499,878.39/144,605.94
  6. Step 6: Final answer
    x = 59,108.91

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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.