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Finding the Fourth Proportional to 154,516.80, 216,945.60 and 154,516.80

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Solution

The fourth proportional to 154,516.80, 216,945.60 and 154,516.80 is: 216,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,516.80 : 216,945.60 = 154,516.80 : x
  2. Step 2: Convert to fraction form
    154,516.80/216,945.60 = 154,516.80/x
  3. Step 3: Cross multiply
    154,516.80x = 216,945.60 × 154,516.80
  4. Step 4: Simplify right side
    154,516.80x = 33,521,739,886.08
  5. Step 5: Solve for x
    x = 33,521,739,886.08/154,516.80
  6. Step 6: Final answer
    x = 216,945.60

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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.