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Finding the Fourth Proportional to 145,855.70, 218,265.15 and 101,273.30

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Solution

The fourth proportional to 145,855.70, 218,265.15 and 101,273.30 is: 151,550.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,855.70 : 218,265.15 = 101,273.30 : x
  2. Step 2: Convert to fraction form
    145,855.70/218,265.15 = 101,273.30/x
  3. Step 3: Cross multiply
    145,855.70x = 218,265.15 × 101,273.30
  4. Step 4: Simplify right side
    145,855.70x = 22,104,432,015.50
  5. Step 5: Solve for x
    x = 22,104,432,015.50/145,855.70
  6. Step 6: Final answer
    x = 151,550.00

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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.