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Finding the Fourth Proportional to 251,101.86, 346,537.53 and 137,925.78

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Solution

The fourth proportional to 251,101.86, 346,537.53 and 137,925.78 is: 190,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,101.86 : 346,537.53 = 137,925.78 : x
  2. Step 2: Convert to fraction form
    251,101.86/346,537.53 = 137,925.78/x
  3. Step 3: Cross multiply
    251,101.86x = 346,537.53 × 137,925.78
  4. Step 4: Simplify right side
    251,101.86x = 47,796,459,124.52
  5. Step 5: Solve for x
    x = 47,796,459,124.52/251,101.86
  6. Step 6: Final answer
    x = 190,346.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.