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Finding the Fourth Proportional to 117,482.94, 162,008.10 and 104,521.86

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Solution

The fourth proportional to 117,482.94, 162,008.10 and 104,521.86 is: 144,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,482.94 : 162,008.10 = 104,521.86 : x
  2. Step 2: Convert to fraction form
    117,482.94/162,008.10 = 104,521.86/x
  3. Step 3: Cross multiply
    117,482.94x = 162,008.10 × 104,521.86
  4. Step 4: Simplify right side
    117,482.94x = 16,933,387,947.07
  5. Step 5: Solve for x
    x = 16,933,387,947.07/117,482.94
  6. Step 6: Final answer
    x = 144,134.87

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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.