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Finding the Fourth Proportional to 125,683.76, 173,385.80 and 111,358.20

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Solution

The fourth proportional to 125,683.76, 173,385.80 and 111,358.20 is: 153,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,683.76 : 173,385.80 = 111,358.20 : x
  2. Step 2: Convert to fraction form
    125,683.76/173,385.80 = 111,358.20/x
  3. Step 3: Cross multiply
    125,683.76x = 173,385.80 × 111,358.20
  4. Step 4: Simplify right side
    125,683.76x = 19,307,931,104.56
  5. Step 5: Solve for x
    x = 19,307,931,104.56/125,683.76
  6. Step 6: Final answer
    x = 153,623.12

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