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Finding the Fourth Proportional to 118,988.10, 164,203.08 and 73,657.04

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Solution

The fourth proportional to 118,988.10, 164,203.08 and 73,657.04 is: 101,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,988.10 : 164,203.08 = 73,657.04 : x
  2. Step 2: Convert to fraction form
    118,988.10/164,203.08 = 73,657.04/x
  3. Step 3: Cross multiply
    118,988.10x = 164,203.08 × 73,657.04
  4. Step 4: Simplify right side
    118,988.10x = 12,094,712,831.68
  5. Step 5: Solve for x
    x = 12,094,712,831.68/118,988.10
  6. Step 6: Final answer
    x = 101,646.41

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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.