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Finding the Fourth Proportional to 368,427.18, 552,640.71 and 102,187.71

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Solution

The fourth proportional to 368,427.18, 552,640.71 and 102,187.71 is: 153,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,427.18 : 552,640.71 = 102,187.71 : x
  2. Step 2: Convert to fraction form
    368,427.18/552,640.71 = 102,187.71/x
  3. Step 3: Cross multiply
    368,427.18x = 552,640.71 × 102,187.71
  4. Step 4: Simplify right side
    368,427.18x = 56,473,088,607.67
  5. Step 5: Solve for x
    x = 56,473,088,607.67/368,427.18
  6. Step 6: Final answer
    x = 153,281.55

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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.