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Finding the Fourth Proportional to 163,586.70, 245,380.05 and 124,220.70

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Solution

The fourth proportional to 163,586.70, 245,380.05 and 124,220.70 is: 186,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,586.70 : 245,380.05 = 124,220.70 : x
  2. Step 2: Convert to fraction form
    163,586.70/245,380.05 = 124,220.70/x
  3. Step 3: Cross multiply
    163,586.70x = 245,380.05 × 124,220.70
  4. Step 4: Simplify right side
    163,586.70x = 30,481,281,577.04
  5. Step 5: Solve for x
    x = 30,481,281,577.04/163,586.70
  6. Step 6: Final answer
    x = 186,331.05

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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.