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Finding the Fourth Proportional to 368,881.29, 553,322.34 and 102,641.85

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Solution

The fourth proportional to 368,881.29, 553,322.34 and 102,641.85 is: 153,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,881.29 : 553,322.34 = 102,641.85 : x
  2. Step 2: Convert to fraction form
    368,881.29/553,322.34 = 102,641.85/x
  3. Step 3: Cross multiply
    368,881.29x = 553,322.34 × 102,641.85
  4. Step 4: Simplify right side
    368,881.29x = 56,794,028,623.93
  5. Step 5: Solve for x
    x = 56,794,028,623.93/368,881.29
  6. Step 6: Final answer
    x = 153,962.89

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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.