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Finding the Fourth Proportional to 250,957.53, 346,309.29 and 143,539.38

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Solution

The fourth proportional to 250,957.53, 346,309.29 and 143,539.38 is: 198,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,957.53 : 346,309.29 = 143,539.38 : x
  2. Step 2: Convert to fraction form
    250,957.53/346,309.29 = 143,539.38/x
  3. Step 3: Cross multiply
    250,957.53x = 346,309.29 × 143,539.38
  4. Step 4: Simplify right side
    250,957.53x = 49,709,020,774.84
  5. Step 5: Solve for x
    x = 49,709,020,774.84/250,957.53
  6. Step 6: Final answer
    x = 198,077.42

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1.5x scale

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.