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Finding the Fourth Proportional to 476,868.20, 715,300.47 and 121,881.65

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Solution

The fourth proportional to 476,868.20, 715,300.47 and 121,881.65 is: 182,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,868.20 : 715,300.47 = 121,881.65 : x
  2. Step 2: Convert to fraction form
    476,868.20/715,300.47 = 121,881.65/x
  3. Step 3: Cross multiply
    476,868.20x = 715,300.47 × 121,881.65
  4. Step 4: Simplify right side
    476,868.20x = 87,181,997,952.87
  5. Step 5: Solve for x
    x = 87,181,997,952.87/476,868.20
  6. Step 6: Final answer
    x = 182,822.00

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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.