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Finding the Fourth Proportional to 241,038.40, 361,555.72 and 72,558

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Solution

The fourth proportional to 241,038.40, 361,555.72 and 72,558 is: 108,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,038.40 : 361,555.72 = 72,558 : x
  2. Step 2: Convert to fraction form
    241,038.40/361,555.72 = 72,558/x
  3. Step 3: Cross multiply
    241,038.40x = 361,555.72 × 72,558
  4. Step 4: Simplify right side
    241,038.40x = 26,233,759,931.76
  5. Step 5: Solve for x
    x = 26,233,759,931.76/241,038.40
  6. Step 6: Final answer
    x = 108,836.43

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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.