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Finding the Fourth Proportional to 255,086.40, 382,192.20 and 166,294.20

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Solution

The fourth proportional to 255,086.40, 382,192.20 and 166,294.20 is: 249,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,086.40 : 382,192.20 = 166,294.20 : x
  2. Step 2: Convert to fraction form
    255,086.40/382,192.20 = 166,294.20/x
  3. Step 3: Cross multiply
    255,086.40x = 382,192.20 × 166,294.20
  4. Step 4: Simplify right side
    255,086.40x = 63,556,346,145.24
  5. Step 5: Solve for x
    x = 63,556,346,145.24/255,086.40
  6. Step 6: Final answer
    x = 249,156.15

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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.