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Finding the Fourth Proportional to 342,792.30, 514,104.57 and 143,114.34

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Solution

The fourth proportional to 342,792.30, 514,104.57 and 143,114.34 is: 214,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,792.30 : 514,104.57 = 143,114.34 : x
  2. Step 2: Convert to fraction form
    342,792.30/514,104.57 = 143,114.34/x
  3. Step 3: Cross multiply
    342,792.30x = 514,104.57 × 143,114.34
  4. Step 4: Simplify right side
    342,792.30x = 73,575,736,226.53
  5. Step 5: Solve for x
    x = 73,575,736,226.53/342,792.30
  6. Step 6: Final answer
    x = 214,636.49

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1.5x scale

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.