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Finding the Fourth Proportional to 118,707.48, 177,938.14 and 74,232.12

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Solution

The fourth proportional to 118,707.48, 177,938.14 and 74,232.12 is: 111,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,707.48 : 177,938.14 = 74,232.12 : x
  2. Step 2: Convert to fraction form
    118,707.48/177,938.14 = 74,232.12/x
  3. Step 3: Cross multiply
    118,707.48x = 177,938.14 × 74,232.12
  4. Step 4: Simplify right side
    118,707.48x = 13,208,725,361.06
  5. Step 5: Solve for x
    x = 13,208,725,361.06/118,707.48
  6. Step 6: Final answer
    x = 111,271.21

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1.5x scale

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.