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Finding the Fourth Proportional to 293,187.70, 439,830.15 and 124,788.70

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Solution

The fourth proportional to 293,187.70, 439,830.15 and 124,788.70 is: 187,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,187.70 : 439,830.15 = 124,788.70 : x
  2. Step 2: Convert to fraction form
    293,187.70/439,830.15 = 124,788.70/x
  3. Step 3: Cross multiply
    293,187.70x = 439,830.15 × 124,788.70
  4. Step 4: Simplify right side
    293,187.70x = 54,885,832,639.31
  5. Step 5: Solve for x
    x = 54,885,832,639.31/293,187.70
  6. Step 6: Final answer
    x = 187,203.74

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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.