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Finding the Fourth Proportional to 319,578.51, 479,332.38 and 114,405.01

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Solution

The fourth proportional to 319,578.51, 479,332.38 and 114,405.01 is: 171,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,578.51 : 479,332.38 = 114,405.01 : x
  2. Step 2: Convert to fraction form
    319,578.51/479,332.38 = 114,405.01/x
  3. Step 3: Cross multiply
    319,578.51x = 479,332.38 × 114,405.01
  4. Step 4: Simplify right side
    319,578.51x = 54,838,024,957.91
  5. Step 5: Solve for x
    x = 54,838,024,957.91/319,578.51
  6. Step 6: Final answer
    x = 171,594.84

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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.