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Finding the Fourth Proportional to 526,903.98, 790,357.79 and 127,544.11

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Solution

The fourth proportional to 526,903.98, 790,357.79 and 127,544.11 is: 191,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,903.98 : 790,357.79 = 127,544.11 : x
  2. Step 2: Convert to fraction form
    526,903.98/790,357.79 = 127,544.11/x
  3. Step 3: Cross multiply
    526,903.98x = 790,357.79 × 127,544.11
  4. Step 4: Simplify right side
    526,903.98x = 100,805,480,907.12
  5. Step 5: Solve for x
    x = 100,805,480,907.12/526,903.98
  6. Step 6: Final answer
    x = 191,316.61

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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.