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Finding the Fourth Proportional to 355,277.80, 532,787.10 and 118,628.20

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Solution

The fourth proportional to 355,277.80, 532,787.10 and 118,628.20 is: 177,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,277.80 : 532,787.10 = 118,628.20 : x
  2. Step 2: Convert to fraction form
    355,277.80/532,787.10 = 118,628.20/x
  3. Step 3: Cross multiply
    355,277.80x = 532,787.10 × 118,628.20
  4. Step 4: Simplify right side
    355,277.80x = 63,203,574,656.22
  5. Step 5: Solve for x
    x = 63,203,574,656.22/355,277.80
  6. Step 6: Final answer
    x = 177,899.03

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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.