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Finding the Fourth Proportional to 154,903.98, 213,903.80 and 96,860.19

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Solution

The fourth proportional to 154,903.98, 213,903.80 and 96,860.19 is: 133,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,903.98 : 213,903.80 = 96,860.19 : x
  2. Step 2: Convert to fraction form
    154,903.98/213,903.80 = 96,860.19/x
  3. Step 3: Cross multiply
    154,903.98x = 213,903.80 × 96,860.19
  4. Step 4: Simplify right side
    154,903.98x = 20,718,762,732.42
  5. Step 5: Solve for x
    x = 20,718,762,732.42/154,903.98
  6. Step 6: Final answer
    x = 133,752.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.