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Finding the Fourth Proportional to 187,903.20, 281,967.12 and 69,657.60

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Solution

The fourth proportional to 187,903.20, 281,967.12 and 69,657.60 is: 104,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,903.20 : 281,967.12 = 69,657.60 : x
  2. Step 2: Convert to fraction form
    187,903.20/281,967.12 = 69,657.60/x
  3. Step 3: Cross multiply
    187,903.20x = 281,967.12 × 69,657.60
  4. Step 4: Simplify right side
    187,903.20x = 19,641,152,858.11
  5. Step 5: Solve for x
    x = 19,641,152,858.11/187,903.20
  6. Step 6: Final answer
    x = 104,528.04

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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.