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Finding the Fourth Proportional to 358,863.94, 537,893.58 and 145,582.30

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Solution

The fourth proportional to 358,863.94, 537,893.58 and 145,582.30 is: 218,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,863.94 : 537,893.58 = 145,582.30 : x
  2. Step 2: Convert to fraction form
    358,863.94/537,893.58 = 145,582.30/x
  3. Step 3: Cross multiply
    358,863.94x = 537,893.58 × 145,582.30
  4. Step 4: Simplify right side
    358,863.94x = 78,307,784,531.63
  5. Step 5: Solve for x
    x = 78,307,784,531.63/358,863.94
  6. Step 6: Final answer
    x = 218,210.23

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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.