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Finding the Fourth Proportional to 149,118.48, 205,715.70 and 88,654.77

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Solution

The fourth proportional to 149,118.48, 205,715.70 and 88,654.77 is: 122,303.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,118.48 : 205,715.70 = 88,654.77 : x
  2. Step 2: Convert to fraction form
    149,118.48/205,715.70 = 88,654.77/x
  3. Step 3: Cross multiply
    149,118.48x = 205,715.70 × 88,654.77
  4. Step 4: Simplify right side
    149,118.48x = 18,237,678,068.89
  5. Step 5: Solve for x
    x = 18,237,678,068.89/149,118.48
  6. Step 6: Final answer
    x = 122,303.27

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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.