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Finding the Fourth Proportional to 267,673.59, 401,386.01 and 99,187.11

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Solution

The fourth proportional to 267,673.59, 401,386.01 and 99,187.11 is: 148,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,673.59 : 401,386.01 = 99,187.11 : x
  2. Step 2: Convert to fraction form
    267,673.59/401,386.01 = 99,187.11/x
  3. Step 3: Cross multiply
    267,673.59x = 401,386.01 × 99,187.11
  4. Step 4: Simplify right side
    267,673.59x = 39,812,317,830.40
  5. Step 5: Solve for x
    x = 39,812,317,830.40/267,673.59
  6. Step 6: Final answer
    x = 148,734.58

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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.