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Finding the Fourth Proportional to 402,384.51, 603,670.25 and 118,063.58

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Solution

The fourth proportional to 402,384.51, 603,670.25 and 118,063.58 is: 177,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,384.51 : 603,670.25 = 118,063.58 : x
  2. Step 2: Convert to fraction form
    402,384.51/603,670.25 = 118,063.58/x
  3. Step 3: Cross multiply
    402,384.51x = 603,670.25 × 118,063.58
  4. Step 4: Simplify right side
    402,384.51x = 71,271,470,854.50
  5. Step 5: Solve for x
    x = 71,271,470,854.50/402,384.51
  6. Step 6: Final answer
    x = 177,122.80

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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.