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Finding the Fourth Proportional to 113,812.62, 157,114.56 and 66,056.74

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Solution

The fourth proportional to 113,812.62, 157,114.56 and 66,056.74 is: 91,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,812.62 : 157,114.56 = 66,056.74 : x
  2. Step 2: Convert to fraction form
    113,812.62/157,114.56 = 66,056.74/x
  3. Step 3: Cross multiply
    113,812.62x = 157,114.56 × 66,056.74
  4. Step 4: Simplify right side
    113,812.62x = 10,378,475,640.13
  5. Step 5: Solve for x
    x = 10,378,475,640.13/113,812.62
  6. Step 6: Final answer
    x = 91,189.15

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1.5x scale

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.