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Finding the Fourth Proportional to 370,871.55, 556,161.75 and 130,934.25

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Solution

The fourth proportional to 370,871.55, 556,161.75 and 130,934.25 is: 196,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,871.55 : 556,161.75 = 130,934.25 : x
  2. Step 2: Convert to fraction form
    370,871.55/556,161.75 = 130,934.25/x
  3. Step 3: Cross multiply
    370,871.55x = 556,161.75 × 130,934.25
  4. Step 4: Simplify right side
    370,871.55x = 72,820,618,834.13
  5. Step 5: Solve for x
    x = 72,820,618,834.13/370,871.55
  6. Step 6: Final answer
    x = 196,349.97

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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.