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Finding the Fourth Proportional to 174,590.25, 240,963.75 and 102,987.87

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Solution

The fourth proportional to 174,590.25, 240,963.75 and 102,987.87 is: 142,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,590.25 : 240,963.75 = 102,987.87 : x
  2. Step 2: Convert to fraction form
    174,590.25/240,963.75 = 102,987.87/x
  3. Step 3: Cross multiply
    174,590.25x = 240,963.75 × 102,987.87
  4. Step 4: Simplify right side
    174,590.25x = 24,816,343,359.71
  5. Step 5: Solve for x
    x = 24,816,343,359.71/174,590.25
  6. Step 6: Final answer
    x = 142,140.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.