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Finding the Fourth Proportional to 370,705.52, 556,124.16 and 134,378.30

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Solution

The fourth proportional to 370,705.52, 556,124.16 and 134,378.30 is: 201,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,705.52 : 556,124.16 = 134,378.30 : x
  2. Step 2: Convert to fraction form
    370,705.52/556,124.16 = 134,378.30/x
  3. Step 3: Cross multiply
    370,705.52x = 556,124.16 × 134,378.30
  4. Step 4: Simplify right side
    370,705.52x = 74,731,019,209.73
  5. Step 5: Solve for x
    x = 74,731,019,209.73/370,705.52
  6. Step 6: Final answer
    x = 201,591.33

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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.