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Finding the Fourth Proportional to 260,525.16, 390,787.54 and 73,536.66

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Solution

The fourth proportional to 260,525.16, 390,787.54 and 73,536.66 is: 110,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,525.16 : 390,787.54 = 73,536.66 : x
  2. Step 2: Convert to fraction form
    260,525.16/390,787.54 = 73,536.66/x
  3. Step 3: Cross multiply
    260,525.16x = 390,787.54 × 73,536.66
  4. Step 4: Simplify right side
    260,525.16x = 28,737,210,277.37
  5. Step 5: Solve for x
    x = 28,737,210,277.37/260,525.16
  6. Step 6: Final answer
    x = 110,304.93

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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.