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Finding the Fourth Proportional to 118,110.40, 177,165.60 and 116,360.80

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Solution

The fourth proportional to 118,110.40, 177,165.60 and 116,360.80 is: 174,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,110.40 : 177,165.60 = 116,360.80 : x
  2. Step 2: Convert to fraction form
    118,110.40/177,165.60 = 116,360.80/x
  3. Step 3: Cross multiply
    118,110.40x = 177,165.60 × 116,360.80
  4. Step 4: Simplify right side
    118,110.40x = 20,615,130,948.48
  5. Step 5: Solve for x
    x = 20,615,130,948.48/118,110.40
  6. Step 6: Final answer
    x = 174,541.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.