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Finding the Fourth Proportional to 145,744.01, 218,679.54 and 51,042.13

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Solution

The fourth proportional to 145,744.01, 218,679.54 and 51,042.13 is: 76,585.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,744.01 : 218,679.54 = 51,042.13 : x
  2. Step 2: Convert to fraction form
    145,744.01/218,679.54 = 51,042.13/x
  3. Step 3: Cross multiply
    145,744.01x = 218,679.54 × 51,042.13
  4. Step 4: Simplify right side
    145,744.01x = 11,161,869,509.02
  5. Step 5: Solve for x
    x = 11,161,869,509.02/145,744.01
  6. Step 6: Final answer
    x = 76,585.44

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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.