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Finding the Fourth Proportional to 346,599.60, 519,899.40 and 122,213.40

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Solution

The fourth proportional to 346,599.60, 519,899.40 and 122,213.40 is: 183,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,599.60 : 519,899.40 = 122,213.40 : x
  2. Step 2: Convert to fraction form
    346,599.60/519,899.40 = 122,213.40/x
  3. Step 3: Cross multiply
    346,599.60x = 519,899.40 × 122,213.40
  4. Step 4: Simplify right side
    346,599.60x = 63,538,673,331.96
  5. Step 5: Solve for x
    x = 63,538,673,331.96/346,599.60
  6. Step 6: Final answer
    x = 183,320.10

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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.