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Finding the Fourth Proportional to 243,136.94, 335,495.90 and 141,146.24

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Solution

The fourth proportional to 243,136.94, 335,495.90 and 141,146.24 is: 194,762.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,136.94 : 335,495.90 = 141,146.24 : x
  2. Step 2: Convert to fraction form
    243,136.94/335,495.90 = 141,146.24/x
  3. Step 3: Cross multiply
    243,136.94x = 335,495.90 × 141,146.24
  4. Step 4: Simplify right side
    243,136.94x = 47,353,984,820.42
  5. Step 5: Solve for x
    x = 47,353,984,820.42/243,136.94
  6. Step 6: Final answer
    x = 194,762.61

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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.