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Finding the Fourth Proportional to 118,164.96, 163,058.40 and 64,446.84

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Solution

The fourth proportional to 118,164.96, 163,058.40 and 64,446.84 is: 88,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,164.96 : 163,058.40 = 64,446.84 : x
  2. Step 2: Convert to fraction form
    118,164.96/163,058.40 = 64,446.84/x
  3. Step 3: Cross multiply
    118,164.96x = 163,058.40 × 64,446.84
  4. Step 4: Simplify right side
    118,164.96x = 10,508,598,615.46
  5. Step 5: Solve for x
    x = 10,508,598,615.46/118,164.96
  6. Step 6: Final answer
    x = 88,931.60

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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.