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Finding the Fourth Proportional to 144,415.80, 216,234.90 and 144,415.80

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Solution

The fourth proportional to 144,415.80, 216,234.90 and 144,415.80 is: 216,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,415.80 : 216,234.90 = 144,415.80 : x
  2. Step 2: Convert to fraction form
    144,415.80/216,234.90 = 144,415.80/x
  3. Step 3: Cross multiply
    144,415.80x = 216,234.90 × 144,415.80
  4. Step 4: Simplify right side
    144,415.80x = 31,227,736,071.42
  5. Step 5: Solve for x
    x = 31,227,736,071.42/144,415.80
  6. Step 6: Final answer
    x = 216,234.90

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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.