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Finding the Fourth Proportional to 110,812.16, 152,931.84 and 66,100.16

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Solution

The fourth proportional to 110,812.16, 152,931.84 and 66,100.16 is: 91,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,812.16 : 152,931.84 = 66,100.16 : x
  2. Step 2: Convert to fraction form
    110,812.16/152,931.84 = 66,100.16/x
  3. Step 3: Cross multiply
    110,812.16x = 152,931.84 × 66,100.16
  4. Step 4: Simplify right side
    110,812.16x = 10,108,819,093.09
  5. Step 5: Solve for x
    x = 10,108,819,093.09/110,812.16
  6. Step 6: Final answer
    x = 91,224.82

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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.