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Finding the Fourth Proportional to 178,313.70, 267,482.70 and 56,724.60

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Solution

The fourth proportional to 178,313.70, 267,482.70 and 56,724.60 is: 85,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,313.70 : 267,482.70 = 56,724.60 : x
  2. Step 2: Convert to fraction form
    178,313.70/267,482.70 = 56,724.60/x
  3. Step 3: Cross multiply
    178,313.70x = 267,482.70 × 56,724.60
  4. Step 4: Simplify right side
    178,313.70x = 15,172,849,164.42
  5. Step 5: Solve for x
    x = 15,172,849,164.42/178,313.70
  6. Step 6: Final answer
    x = 85,090.77

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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.