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Finding the Fourth Proportional to 163,970.94, 245,781.69 and 93,702.78

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Solution

The fourth proportional to 163,970.94, 245,781.69 and 93,702.78 is: 140,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,970.94 : 245,781.69 = 93,702.78 : x
  2. Step 2: Convert to fraction form
    163,970.94/245,781.69 = 93,702.78/x
  3. Step 3: Cross multiply
    163,970.94x = 245,781.69 × 93,702.78
  4. Step 4: Simplify right side
    163,970.94x = 23,030,427,626.10
  5. Step 5: Solve for x
    x = 23,030,427,626.10/163,970.94
  6. Step 6: Final answer
    x = 140,454.32

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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.