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Finding the Fourth Proportional to 236,422.40, 354,806.40 and 166,438.40

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Solution

The fourth proportional to 236,422.40, 354,806.40 and 166,438.40 is: 249,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,422.40 : 354,806.40 = 166,438.40 : x
  2. Step 2: Convert to fraction form
    236,422.40/354,806.40 = 166,438.40/x
  3. Step 3: Cross multiply
    236,422.40x = 354,806.40 × 166,438.40
  4. Step 4: Simplify right side
    236,422.40x = 59,053,409,525.76
  5. Step 5: Solve for x
    x = 59,053,409,525.76/236,422.40
  6. Step 6: Final answer
    x = 249,779.25

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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.