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Finding the Fourth Proportional to 346,328.80, 519,493.20 and 146,582.80

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Solution

The fourth proportional to 346,328.80, 519,493.20 and 146,582.80 is: 219,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,328.80 : 519,493.20 = 146,582.80 : x
  2. Step 2: Convert to fraction form
    346,328.80/519,493.20 = 146,582.80/x
  3. Step 3: Cross multiply
    346,328.80x = 519,493.20 × 146,582.80
  4. Step 4: Simplify right side
    346,328.80x = 76,148,767,836.96
  5. Step 5: Solve for x
    x = 76,148,767,836.96/346,328.80
  6. Step 6: Final answer
    x = 219,874.20

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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.