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Finding the Fourth Proportional to 243,307.65, 364,996.37 and 74,842.18

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Solution

The fourth proportional to 243,307.65, 364,996.37 and 74,842.18 is: 112,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,307.65 : 364,996.37 = 74,842.18 : x
  2. Step 2: Convert to fraction form
    243,307.65/364,996.37 = 74,842.18/x
  3. Step 3: Cross multiply
    243,307.65x = 364,996.37 × 74,842.18
  4. Step 4: Simplify right side
    243,307.65x = 27,317,123,648.68
  5. Step 5: Solve for x
    x = 27,317,123,648.68/243,307.65
  6. Step 6: Final answer
    x = 112,274.00

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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.