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Finding the Fourth Proportional to 292,710.03, 439,147.66 and 82,349.79

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Solution

The fourth proportional to 292,710.03, 439,147.66 and 82,349.79 is: 123,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,710.03 : 439,147.66 = 82,349.79 : x
  2. Step 2: Convert to fraction form
    292,710.03/439,147.66 = 82,349.79/x
  3. Step 3: Cross multiply
    292,710.03x = 439,147.66 × 82,349.79
  4. Step 4: Simplify right side
    292,710.03x = 36,163,717,579.99
  5. Step 5: Solve for x
    x = 36,163,717,579.99/292,710.03
  6. Step 6: Final answer
    x = 123,547.93

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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.