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Finding the Fourth Proportional to 125,860.34, 188,790.52 and 118,162.10

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Solution

The fourth proportional to 125,860.34, 188,790.52 and 118,162.10 is: 177,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,860.34 : 188,790.52 = 118,162.10 : x
  2. Step 2: Convert to fraction form
    125,860.34/188,790.52 = 118,162.10/x
  3. Step 3: Cross multiply
    125,860.34x = 188,790.52 × 118,162.10
  4. Step 4: Simplify right side
    125,860.34x = 22,307,884,479.86
  5. Step 5: Solve for x
    x = 22,307,884,479.86/125,860.34
  6. Step 6: Final answer
    x = 177,243.16

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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.