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Finding the Fourth Proportional to 111,596.90, 154,030.29 and 63,877.82

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Solution

The fourth proportional to 111,596.90, 154,030.29 and 63,877.82 is: 88,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,596.90 : 154,030.29 = 63,877.82 : x
  2. Step 2: Convert to fraction form
    111,596.90/154,030.29 = 63,877.82/x
  3. Step 3: Cross multiply
    111,596.90x = 154,030.29 × 63,877.82
  4. Step 4: Simplify right side
    111,596.90x = 9,839,119,139.17
  5. Step 5: Solve for x
    x = 9,839,119,139.17/111,596.90
  6. Step 6: Final answer
    x = 88,166.60

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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.