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Finding the Fourth Proportional to 358,124.83, 536,716.37 and 147,645.79

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Solution

The fourth proportional to 358,124.83, 536,716.37 and 147,645.79 is: 221,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,124.83 : 536,716.37 = 147,645.79 : x
  2. Step 2: Convert to fraction form
    358,124.83/536,716.37 = 147,645.79/x
  3. Step 3: Cross multiply
    358,124.83x = 536,716.37 × 147,645.79
  4. Step 4: Simplify right side
    358,124.83x = 79,243,911,716.35
  5. Step 5: Solve for x
    x = 79,243,911,716.35/358,124.83
  6. Step 6: Final answer
    x = 221,274.55

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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.