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Finding the Fourth Proportional to 282,297.71, 423,463.05 and 79,876.89

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Solution

The fourth proportional to 282,297.71, 423,463.05 and 79,876.89 is: 119,820.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,297.71 : 423,463.05 = 79,876.89 : x
  2. Step 2: Convert to fraction form
    282,297.71/423,463.05 = 79,876.89/x
  3. Step 3: Cross multiply
    282,297.71x = 423,463.05 × 79,876.89
  4. Step 4: Simplify right side
    282,297.71x = 33,824,911,463.91
  5. Step 5: Solve for x
    x = 33,824,911,463.91/282,297.71
  6. Step 6: Final answer
    x = 119,820.00

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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.