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Finding the Fourth Proportional to 125,666.51, 173,361.99 and 111,340.96

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Solution

The fourth proportional to 125,666.51, 173,361.99 and 111,340.96 is: 153,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,666.51 : 173,361.99 = 111,340.96 : x
  2. Step 2: Convert to fraction form
    125,666.51/173,361.99 = 111,340.96/x
  3. Step 3: Cross multiply
    125,666.51x = 173,361.99 × 111,340.96
  4. Step 4: Simplify right side
    125,666.51x = 19,302,289,960.71
  5. Step 5: Solve for x
    x = 19,302,289,960.71/125,666.51
  6. Step 6: Final answer
    x = 153,599.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.