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Finding the Fourth Proportional to 476,707.44, 715,060.80 and 121,721.52

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Solution

The fourth proportional to 476,707.44, 715,060.80 and 121,721.52 is: 182,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,707.44 : 715,060.80 = 121,721.52 : x
  2. Step 2: Convert to fraction form
    476,707.44/715,060.80 = 121,721.52/x
  3. Step 3: Cross multiply
    476,707.44x = 715,060.80 × 121,721.52
  4. Step 4: Simplify right side
    476,707.44x = 87,038,287,468.42
  5. Step 5: Solve for x
    x = 87,038,287,468.42/476,707.44
  6. Step 6: Final answer
    x = 182,582.19

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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.