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Finding the Fourth Proportional to 145,643.44, 218,550.18 and 61,398.52

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Solution

The fourth proportional to 145,643.44, 218,550.18 and 61,398.52 is: 92,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643.44 : 218,550.18 = 61,398.52 : x
  2. Step 2: Convert to fraction form
    145,643.44/218,550.18 = 61,398.52/x
  3. Step 3: Cross multiply
    145,643.44x = 218,550.18 × 61,398.52
  4. Step 4: Simplify right side
    145,643.44x = 13,418,657,597.73
  5. Step 5: Solve for x
    x = 13,418,657,597.73/145,643.44
  6. Step 6: Final answer
    x = 92,133.62

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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.