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Finding the Fourth Proportional to 378,281.66, 567,505.51 and 112,063.01

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Solution

The fourth proportional to 378,281.66, 567,505.51 and 112,063.01 is: 168,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,281.66 : 567,505.51 = 112,063.01 : x
  2. Step 2: Convert to fraction form
    378,281.66/567,505.51 = 112,063.01/x
  3. Step 3: Cross multiply
    378,281.66x = 567,505.51 × 112,063.01
  4. Step 4: Simplify right side
    378,281.66x = 63,596,372,524.50
  5. Step 5: Solve for x
    x = 63,596,372,524.50/378,281.66
  6. Step 6: Final answer
    x = 168,119.10

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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.