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Finding the Fourth Proportional to 316,992.51, 437,442.77 and 173,749.47

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Solution

The fourth proportional to 316,992.51, 437,442.77 and 173,749.47 is: 239,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,992.51 : 437,442.77 = 173,749.47 : x
  2. Step 2: Convert to fraction form
    316,992.51/437,442.77 = 173,749.47/x
  3. Step 3: Cross multiply
    316,992.51x = 437,442.77 × 173,749.47
  4. Step 4: Simplify right side
    316,992.51x = 76,005,448,574.08
  5. Step 5: Solve for x
    x = 76,005,448,574.08/316,992.51
  6. Step 6: Final answer
    x = 239,770.49

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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.