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Finding the Fourth Proportional to 370,913.68, 556,364.47 and 118,190.77

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Solution

The fourth proportional to 370,913.68, 556,364.47 and 118,190.77 is: 177,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,913.68 : 556,364.47 = 118,190.77 : x
  2. Step 2: Convert to fraction form
    370,913.68/556,364.47 = 118,190.77/x
  3. Step 3: Cross multiply
    370,913.68x = 556,364.47 × 118,190.77
  4. Step 4: Simplify right side
    370,913.68x = 65,757,141,737.17
  5. Step 5: Solve for x
    x = 65,757,141,737.17/370,913.68
  6. Step 6: Final answer
    x = 177,284.22

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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.