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Finding the Fourth Proportional to 346,613, 519,919.50 and 124,997

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Solution

The fourth proportional to 346,613, 519,919.50 and 124,997 is: 187,495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,613 : 519,919.50 = 124,997 : x
  2. Step 2: Convert to fraction form
    346,613/519,919.50 = 124,997/x
  3. Step 3: Cross multiply
    346,613x = 519,919.50 × 124,997
  4. Step 4: Simplify right side
    346,613x = 64,988,377,741.50
  5. Step 5: Solve for x
    x = 64,988,377,741.50/346,613
  6. Step 6: Final answer
    x = 187,495.50

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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.