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Finding the Fourth Proportional to 154,059.30, 216,305.10 and 154,059.30

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Solution

The fourth proportional to 154,059.30, 216,305.10 and 154,059.30 is: 216,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,059.30 : 216,305.10 = 154,059.30 : x
  2. Step 2: Convert to fraction form
    154,059.30/216,305.10 = 154,059.30/x
  3. Step 3: Cross multiply
    154,059.30x = 216,305.10 × 154,059.30
  4. Step 4: Simplify right side
    154,059.30x = 33,323,812,292.43
  5. Step 5: Solve for x
    x = 33,323,812,292.43/154,059.30
  6. Step 6: Final answer
    x = 216,305.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.