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Finding the Fourth Proportional to 364,670.92, 546,322.03 and 139,878.77

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Solution

The fourth proportional to 364,670.92, 546,322.03 and 139,878.77 is: 209,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,670.92 : 546,322.03 = 139,878.77 : x
  2. Step 2: Convert to fraction form
    364,670.92/546,322.03 = 139,878.77/x
  3. Step 3: Cross multiply
    364,670.92x = 546,322.03 × 139,878.77
  4. Step 4: Simplify right side
    364,670.92x = 76,418,850,499.00
  5. Step 5: Solve for x
    x = 76,418,850,499.00/364,670.92
  6. Step 6: Final answer
    x = 209,555.65

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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.