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Finding the Fourth Proportional to 118,873.04, 164,047.01 and 65,157.68

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Solution

The fourth proportional to 118,873.04, 164,047.01 and 65,157.68 is: 89,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873.04 : 164,047.01 = 65,157.68 : x
  2. Step 2: Convert to fraction form
    118,873.04/164,047.01 = 65,157.68/x
  3. Step 3: Cross multiply
    118,873.04x = 164,047.01 × 65,157.68
  4. Step 4: Simplify right side
    118,873.04x = 10,688,922,666.87
  5. Step 5: Solve for x
    x = 10,688,922,666.87/118,873.04
  6. Step 6: Final answer
    x = 89,918.82

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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.