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Finding the Fourth Proportional to 293,113.80, 439,670.70 and 251,123.40

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Solution

The fourth proportional to 293,113.80, 439,670.70 and 251,123.40 is: 376,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,113.80 : 439,670.70 = 251,123.40 : x
  2. Step 2: Convert to fraction form
    293,113.80/439,670.70 = 251,123.40/x
  3. Step 3: Cross multiply
    293,113.80x = 439,670.70 × 251,123.40
  4. Step 4: Simplify right side
    293,113.80x = 110,411,601,064.38
  5. Step 5: Solve for x
    x = 110,411,601,064.38/293,113.80
  6. Step 6: Final answer
    x = 376,685.10

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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.