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Finding the Fourth Proportional to 317,866.54, 438,637.62 and 174,623.51

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Solution

The fourth proportional to 317,866.54, 438,637.62 and 174,623.51 is: 240,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,866.54 : 438,637.62 = 174,623.51 : x
  2. Step 2: Convert to fraction form
    317,866.54/438,637.62 = 174,623.51/x
  3. Step 3: Cross multiply
    317,866.54x = 438,637.62 × 174,623.51
  4. Step 4: Simplify right side
    317,866.54x = 76,596,440,822.45
  5. Step 5: Solve for x
    x = 76,596,440,822.45/317,866.54
  6. Step 6: Final answer
    x = 240,970.44

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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.