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Finding the Fourth Proportional to 118,460.52, 163,419.66 and 70,029.81

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Solution

The fourth proportional to 118,460.52, 163,419.66 and 70,029.81 is: 96,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,460.52 : 163,419.66 = 70,029.81 : x
  2. Step 2: Convert to fraction form
    118,460.52/163,419.66 = 70,029.81/x
  3. Step 3: Cross multiply
    118,460.52x = 163,419.66 × 70,029.81
  4. Step 4: Simplify right side
    118,460.52x = 11,444,247,740.06
  5. Step 5: Solve for x
    x = 11,444,247,740.06/118,460.52
  6. Step 6: Final answer
    x = 96,608.12

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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.