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Finding the Fourth Proportional to 105,702.77, 158,529.89 and 63,020.28

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Solution

The fourth proportional to 105,702.77, 158,529.89 and 63,020.28 is: 94,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,702.77 : 158,529.89 = 63,020.28 : x
  2. Step 2: Convert to fraction form
    105,702.77/158,529.89 = 63,020.28/x
  3. Step 3: Cross multiply
    105,702.77x = 158,529.89 × 63,020.28
  4. Step 4: Simplify right side
    105,702.77x = 9,990,598,056.17
  5. Step 5: Solve for x
    x = 9,990,598,056.17/105,702.77
  6. Step 6: Final answer
    x = 94,515.95

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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.