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Finding the Fourth Proportional to 111,876.19, 154,389.44 and 61,575.19

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Solution

The fourth proportional to 111,876.19, 154,389.44 and 61,575.19 is: 84,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,876.19 : 154,389.44 = 61,575.19 : x
  2. Step 2: Convert to fraction form
    111,876.19/154,389.44 = 61,575.19/x
  3. Step 3: Cross multiply
    111,876.19x = 154,389.44 × 61,575.19
  4. Step 4: Simplify right side
    111,876.19x = 9,506,558,869.96
  5. Step 5: Solve for x
    x = 9,506,558,869.96/111,876.19
  6. Step 6: Final answer
    x = 84,973.93

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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.