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Finding the Fourth Proportional to 487,987.04, 732,028.64 and 168,164.48

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Solution

The fourth proportional to 487,987.04, 732,028.64 and 168,164.48 is: 252,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,987.04 : 732,028.64 = 168,164.48 : x
  2. Step 2: Convert to fraction form
    487,987.04/732,028.64 = 168,164.48/x
  3. Step 3: Cross multiply
    487,987.04x = 732,028.64 × 168,164.48
  4. Step 4: Simplify right side
    487,987.04x = 123,101,215,590.71
  5. Step 5: Solve for x
    x = 123,101,215,590.71/487,987.04
  6. Step 6: Final answer
    x = 252,263.29

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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.