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Finding the Fourth Proportional to 251,312.10, 376,931.70 and 73,800.60

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Solution

The fourth proportional to 251,312.10, 376,931.70 and 73,800.60 is: 110,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,312.10 : 376,931.70 = 73,800.60 : x
  2. Step 2: Convert to fraction form
    251,312.10/376,931.70 = 73,800.60/x
  3. Step 3: Cross multiply
    251,312.10x = 376,931.70 × 73,800.60
  4. Step 4: Simplify right side
    251,312.10x = 27,817,785,619.02
  5. Step 5: Solve for x
    x = 27,817,785,619.02/251,312.10
  6. Step 6: Final answer
    x = 110,690.20

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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.