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Finding the Fourth Proportional to 373,128.60, 559,692.90 and 123,810.60

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Solution

The fourth proportional to 373,128.60, 559,692.90 and 123,810.60 is: 185,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,128.60 : 559,692.90 = 123,810.60 : x
  2. Step 2: Convert to fraction form
    373,128.60/559,692.90 = 123,810.60/x
  3. Step 3: Cross multiply
    373,128.60x = 559,692.90 × 123,810.60
  4. Step 4: Simplify right side
    373,128.60x = 69,295,913,764.74
  5. Step 5: Solve for x
    x = 69,295,913,764.74/373,128.60
  6. Step 6: Final answer
    x = 185,715.90

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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.