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Finding the Fourth Proportional to 373,303.12, 559,956.80 and 92,820.40

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Solution

The fourth proportional to 373,303.12, 559,956.80 and 92,820.40 is: 139,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,303.12 : 559,956.80 = 92,820.40 : x
  2. Step 2: Convert to fraction form
    373,303.12/559,956.80 = 92,820.40/x
  3. Step 3: Cross multiply
    373,303.12x = 559,956.80 × 92,820.40
  4. Step 4: Simplify right side
    373,303.12x = 51,975,414,158.72
  5. Step 5: Solve for x
    x = 51,975,414,158.72/373,303.12
  6. Step 6: Final answer
    x = 139,231.13

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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.