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Finding the Fourth Proportional to 346,122.84, 519,415.90 and 121,484.32

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Solution

The fourth proportional to 346,122.84, 519,415.90 and 121,484.32 is: 182,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,122.84 : 519,415.90 = 121,484.32 : x
  2. Step 2: Convert to fraction form
    346,122.84/519,415.90 = 121,484.32/x
  3. Step 3: Cross multiply
    346,122.84x = 519,415.90 × 121,484.32
  4. Step 4: Simplify right side
    346,122.84x = 63,100,887,408.69
  5. Step 5: Solve for x
    x = 63,100,887,408.69/346,122.84
  6. Step 6: Final answer
    x = 182,307.78

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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.