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Finding the Fourth Proportional to 254,963.30, 382,116.90 and 155,017.40

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Solution

The fourth proportional to 254,963.30, 382,116.90 and 155,017.40 is: 232,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,963.30 : 382,116.90 = 155,017.40 : x
  2. Step 2: Convert to fraction form
    254,963.30/382,116.90 = 155,017.40/x
  3. Step 3: Cross multiply
    254,963.30x = 382,116.90 × 155,017.40
  4. Step 4: Simplify right side
    254,963.30x = 59,234,768,334.06
  5. Step 5: Solve for x
    x = 59,234,768,334.06/254,963.30
  6. Step 6: Final answer
    x = 232,326.65

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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.