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Finding the Fourth Proportional to 163,586.40, 245,379.60 and 124,220.40

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Solution

The fourth proportional to 163,586.40, 245,379.60 and 124,220.40 is: 186,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,586.40 : 245,379.60 = 124,220.40 : x
  2. Step 2: Convert to fraction form
    163,586.40/245,379.60 = 124,220.40/x
  3. Step 3: Cross multiply
    163,586.40x = 245,379.60 × 124,220.40
  4. Step 4: Simplify right side
    163,586.40x = 30,481,152,063.84
  5. Step 5: Solve for x
    x = 30,481,152,063.84/163,586.40
  6. Step 6: Final answer
    x = 186,330.60

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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.