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Finding the Fourth Proportional to 346,209.60, 519,546.60 and 121,569.60

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Solution

The fourth proportional to 346,209.60, 519,546.60 and 121,569.60 is: 182,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,209.60 : 519,546.60 = 121,569.60 : x
  2. Step 2: Convert to fraction form
    346,209.60/519,546.60 = 121,569.60/x
  3. Step 3: Cross multiply
    346,209.60x = 519,546.60 × 121,569.60
  4. Step 4: Simplify right side
    346,209.60x = 63,161,072,343.36
  5. Step 5: Solve for x
    x = 63,161,072,343.36/346,209.60
  6. Step 6: Final answer
    x = 182,435.94

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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.