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Finding the Fourth Proportional to 371,205.76, 556,536 and 118,340.80

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Solution

The fourth proportional to 371,205.76, 556,536 and 118,340.80 is: 177,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,205.76 : 556,536 = 118,340.80 : x
  2. Step 2: Convert to fraction form
    371,205.76/556,536 = 118,340.80/x
  3. Step 3: Cross multiply
    371,205.76x = 556,536 × 118,340.80
  4. Step 4: Simplify right side
    371,205.76x = 65,860,915,468.80
  5. Step 5: Solve for x
    x = 65,860,915,468.80/371,205.76
  6. Step 6: Final answer
    x = 177,424.28

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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.