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Finding the Fourth Proportional to 373,079.84, 559,699.72 and 120,374.72

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Solution

The fourth proportional to 373,079.84, 559,699.72 and 120,374.72 is: 180,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,079.84 : 559,699.72 = 120,374.72 : x
  2. Step 2: Convert to fraction form
    373,079.84/559,699.72 = 120,374.72/x
  3. Step 3: Cross multiply
    373,079.84x = 559,699.72 × 120,374.72
  4. Step 4: Simplify right side
    373,079.84x = 67,373,697,079.08
  5. Step 5: Solve for x
    x = 67,373,697,079.08/373,079.84
  6. Step 6: Final answer
    x = 180,587.88

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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.