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Finding the Fourth Proportional to 368,637.27, 553,020.70 and 152,495.25

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Solution

The fourth proportional to 368,637.27, 553,020.70 and 152,495.25 is: 228,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,637.27 : 553,020.70 = 152,495.25 : x
  2. Step 2: Convert to fraction form
    368,637.27/553,020.70 = 152,495.25/x
  3. Step 3: Cross multiply
    368,637.27x = 553,020.70 × 152,495.25
  4. Step 4: Simplify right side
    368,637.27x = 84,333,029,901.68
  5. Step 5: Solve for x
    x = 84,333,029,901.68/368,637.27
  6. Step 6: Final answer
    x = 228,769.68

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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.