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Finding the Fourth Proportional to 371,403.60, 556,724.04 and 146,672.96

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Solution

The fourth proportional to 371,403.60, 556,724.04 and 146,672.96 is: 219,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,403.60 : 556,724.04 = 146,672.96 : x
  2. Step 2: Convert to fraction form
    371,403.60/556,724.04 = 146,672.96/x
  3. Step 3: Cross multiply
    371,403.60x = 556,724.04 × 146,672.96
  4. Step 4: Simplify right side
    371,403.60x = 81,656,362,849.96
  5. Step 5: Solve for x
    x = 81,656,362,849.96/371,403.60
  6. Step 6: Final answer
    x = 219,858.84

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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.