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Finding the Fourth Proportional to 169,321.40, 254,567.70 and 158,358.20

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Solution

The fourth proportional to 169,321.40, 254,567.70 and 158,358.20 is: 238,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,321.40 : 254,567.70 = 158,358.20 : x
  2. Step 2: Convert to fraction form
    169,321.40/254,567.70 = 158,358.20/x
  3. Step 3: Cross multiply
    169,321.40x = 254,567.70 × 158,358.20
  4. Step 4: Simplify right side
    169,321.40x = 40,312,882,750.14
  5. Step 5: Solve for x
    x = 40,312,882,750.14/169,321.40
  6. Step 6: Final answer
    x = 238,084.98

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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.