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Finding the Fourth Proportional to 165,588.64, 248,424.35 and 65,715.79

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Solution

The fourth proportional to 165,588.64, 248,424.35 and 65,715.79 is: 98,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,588.64 : 248,424.35 = 65,715.79 : x
  2. Step 2: Convert to fraction form
    165,588.64/248,424.35 = 65,715.79/x
  3. Step 3: Cross multiply
    165,588.64x = 248,424.35 × 65,715.79
  4. Step 4: Simplify right side
    165,588.64x = 16,325,402,415.49
  5. Step 5: Solve for x
    x = 16,325,402,415.49/165,588.64
  6. Step 6: Final answer
    x = 98,590.11

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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.