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Finding the Fourth Proportional to 118,751.76, 163,877.64 and 64,304.52

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Solution

The fourth proportional to 118,751.76, 163,877.64 and 64,304.52 is: 88,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,751.76 : 163,877.64 = 64,304.52 : x
  2. Step 2: Convert to fraction form
    118,751.76/163,877.64 = 64,304.52/x
  3. Step 3: Cross multiply
    118,751.76x = 163,877.64 × 64,304.52
  4. Step 4: Simplify right side
    118,751.76x = 10,538,072,978.93
  5. Step 5: Solve for x
    x = 10,538,072,978.93/118,751.76
  6. Step 6: Final answer
    x = 88,740.35

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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.