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Finding the Fourth Proportional to 145,655.51, 218,483.19 and 40,474.44

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Solution

The fourth proportional to 145,655.51, 218,483.19 and 40,474.44 is: 60,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655.51 : 218,483.19 = 40,474.44 : x
  2. Step 2: Convert to fraction form
    145,655.51/218,483.19 = 40,474.44/x
  3. Step 3: Cross multiply
    145,655.51x = 218,483.19 × 40,474.44
  4. Step 4: Simplify right side
    145,655.51x = 8,842,984,764.66
  5. Step 5: Solve for x
    x = 8,842,984,764.66/145,655.51
  6. Step 6: Final answer
    x = 60,711.64

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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.