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Finding the Fourth Proportional to 157,487.40, 235,512.90 and 117,534.60

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Solution

The fourth proportional to 157,487.40, 235,512.90 and 117,534.60 is: 175,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,487.40 : 235,512.90 = 117,534.60 : x
  2. Step 2: Convert to fraction form
    157,487.40/235,512.90 = 117,534.60/x
  3. Step 3: Cross multiply
    157,487.40x = 235,512.90 × 117,534.60
  4. Step 4: Simplify right side
    157,487.40x = 27,680,914,496.34
  5. Step 5: Solve for x
    x = 27,680,914,496.34/157,487.40
  6. Step 6: Final answer
    x = 175,765.90

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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.