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Finding the Fourth Proportional to 472,425.93, 708,493.37 and 135,376.11

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Solution

The fourth proportional to 472,425.93, 708,493.37 and 135,376.11 is: 203,022.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,425.93 : 708,493.37 = 135,376.11 : x
  2. Step 2: Convert to fraction form
    472,425.93/708,493.37 = 135,376.11/x
  3. Step 3: Cross multiply
    472,425.93x = 708,493.37 × 135,376.11
  4. Step 4: Simplify right side
    472,425.93x = 95,913,075,714.51
  5. Step 5: Solve for x
    x = 95,913,075,714.51/472,425.93
  6. Step 6: Final answer
    x = 203,022.46

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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.