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Finding the Fourth Proportional to 119,323.86, 164,671.16 and 65,612.99

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Solution

The fourth proportional to 119,323.86, 164,671.16 and 65,612.99 is: 90,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,323.86 : 164,671.16 = 65,612.99 : x
  2. Step 2: Convert to fraction form
    119,323.86/164,671.16 = 65,612.99/x
  3. Step 3: Cross multiply
    119,323.86x = 164,671.16 × 65,612.99
  4. Step 4: Simplify right side
    119,323.86x = 10,804,566,022.95
  5. Step 5: Solve for x
    x = 10,804,566,022.95/119,323.86
  6. Step 6: Final answer
    x = 90,548.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.