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Finding the Fourth Proportional to 527,643.99, 791,474.67 and 148,573.86

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Solution

The fourth proportional to 527,643.99, 791,474.67 and 148,573.86 is: 222,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,643.99 : 791,474.67 = 148,573.86 : x
  2. Step 2: Convert to fraction form
    527,643.99/791,474.67 = 148,573.86/x
  3. Step 3: Cross multiply
    527,643.99x = 791,474.67 × 148,573.86
  4. Step 4: Simplify right side
    527,643.99x = 117,592,446,814.13
  5. Step 5: Solve for x
    x = 117,592,446,814.13/527,643.99
  6. Step 6: Final answer
    x = 222,863.24

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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.