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Finding the Fourth Proportional to 389,164.34, 583,698.18 and 104,877.12

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Solution

The fourth proportional to 389,164.34, 583,698.18 and 104,877.12 is: 157,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,164.34 : 583,698.18 = 104,877.12 : x
  2. Step 2: Convert to fraction form
    389,164.34/583,698.18 = 104,877.12/x
  3. Step 3: Cross multiply
    389,164.34x = 583,698.18 × 104,877.12
  4. Step 4: Simplify right side
    389,164.34x = 61,216,584,067.64
  5. Step 5: Solve for x
    x = 61,216,584,067.64/389,164.34
  6. Step 6: Final answer
    x = 157,302.66

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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.