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Finding the Fourth Proportional to 260,365.14, 390,206.43 and 148,096.98

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Solution

The fourth proportional to 260,365.14, 390,206.43 and 148,096.98 is: 221,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,365.14 : 390,206.43 = 148,096.98 : x
  2. Step 2: Convert to fraction form
    260,365.14/390,206.43 = 148,096.98/x
  3. Step 3: Cross multiply
    260,365.14x = 390,206.43 × 148,096.98
  4. Step 4: Simplify right side
    260,365.14x = 57,788,393,859.58
  5. Step 5: Solve for x
    x = 57,788,393,859.58/260,365.14
  6. Step 6: Final answer
    x = 221,951.35

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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.