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Finding the Fourth Proportional to 108,970.92, 163,413.72 and 42,402.24

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Solution

The fourth proportional to 108,970.92, 163,413.72 and 42,402.24 is: 63,586.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,970.92 : 163,413.72 = 42,402.24 : x
  2. Step 2: Convert to fraction form
    108,970.92/163,413.72 = 42,402.24/x
  3. Step 3: Cross multiply
    108,970.92x = 163,413.72 × 42,402.24
  4. Step 4: Simplify right side
    108,970.92x = 6,929,107,774.73
  5. Step 5: Solve for x
    x = 6,929,107,774.73/108,970.92
  6. Step 6: Final answer
    x = 63,586.76

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1.5x scale

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.