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Finding the Fourth Proportional to 119,808.54, 165,343.95 and 69,507.54

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Solution

The fourth proportional to 119,808.54, 165,343.95 and 69,507.54 is: 95,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,808.54 : 165,343.95 = 69,507.54 : x
  2. Step 2: Convert to fraction form
    119,808.54/165,343.95 = 69,507.54/x
  3. Step 3: Cross multiply
    119,808.54x = 165,343.95 × 69,507.54
  4. Step 4: Simplify right side
    119,808.54x = 11,492,651,218.38
  5. Step 5: Solve for x
    x = 11,492,651,218.38/119,808.54
  6. Step 6: Final answer
    x = 95,925.14

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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.