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Finding the Fourth Proportional to 292,935.88, 439,469.72 and 103,409.72

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Solution

The fourth proportional to 292,935.88, 439,469.72 and 103,409.72 is: 155,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,935.88 : 439,469.72 = 103,409.72 : x
  2. Step 2: Convert to fraction form
    292,935.88/439,469.72 = 103,409.72/x
  3. Step 3: Cross multiply
    292,935.88x = 439,469.72 × 103,409.72
  4. Step 4: Simplify right side
    292,935.88x = 45,445,440,693.68
  5. Step 5: Solve for x
    x = 45,445,440,693.68/292,935.88
  6. Step 6: Final answer
    x = 155,137.84

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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.