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Finding the Fourth Proportional to 125,848.89, 188,551.89 and 118,357.05

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Solution

The fourth proportional to 125,848.89, 188,551.89 and 118,357.05 is: 177,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,848.89 : 188,551.89 = 118,357.05 : x
  2. Step 2: Convert to fraction form
    125,848.89/188,551.89 = 118,357.05/x
  3. Step 3: Cross multiply
    125,848.89x = 188,551.89 × 118,357.05
  4. Step 4: Simplify right side
    125,848.89x = 22,316,445,472.32
  5. Step 5: Solve for x
    x = 22,316,445,472.32/125,848.89
  6. Step 6: Final answer
    x = 177,327.31

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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.