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Finding the Fourth Proportional to 342,774.30, 514,266.48 and 153,394.08

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Solution

The fourth proportional to 342,774.30, 514,266.48 and 153,394.08 is: 230,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,774.30 : 514,266.48 = 153,394.08 : x
  2. Step 2: Convert to fraction form
    342,774.30/514,266.48 = 153,394.08/x
  3. Step 3: Cross multiply
    342,774.30x = 514,266.48 × 153,394.08
  4. Step 4: Simplify right side
    342,774.30x = 78,885,433,574.44
  5. Step 5: Solve for x
    x = 78,885,433,574.44/342,774.30
  6. Step 6: Final answer
    x = 230,138.12

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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.