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Finding the Fourth Proportional to 190,363.14, 262,702.95 and 105,482.01

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Solution

The fourth proportional to 190,363.14, 262,702.95 and 105,482.01 is: 145,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,363.14 : 262,702.95 = 105,482.01 : x
  2. Step 2: Convert to fraction form
    190,363.14/262,702.95 = 105,482.01/x
  3. Step 3: Cross multiply
    190,363.14x = 262,702.95 × 105,482.01
  4. Step 4: Simplify right side
    190,363.14x = 27,710,435,198.93
  5. Step 5: Solve for x
    x = 27,710,435,198.93/190,363.14
  6. Step 6: Final answer
    x = 145,566.18

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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.