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Finding the Fourth Proportional to 370,820.80, 556,254.96 and 130,904.96

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Solution

The fourth proportional to 370,820.80, 556,254.96 and 130,904.96 is: 196,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,820.80 : 556,254.96 = 130,904.96 : x
  2. Step 2: Convert to fraction form
    370,820.80/556,254.96 = 130,904.96/x
  3. Step 3: Cross multiply
    370,820.80x = 556,254.96 × 130,904.96
  4. Step 4: Simplify right side
    370,820.80x = 72,816,533,288.60
  5. Step 5: Solve for x
    x = 72,816,533,288.60/370,820.80
  6. Step 6: Final answer
    x = 196,365.83

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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.