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Finding the Fourth Proportional to 111,309.71, 166,962.78 and 35,407.17

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Solution

The fourth proportional to 111,309.71, 166,962.78 and 35,407.17 is: 53,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,309.71 : 166,962.78 = 35,407.17 : x
  2. Step 2: Convert to fraction form
    111,309.71/166,962.78 = 35,407.17/x
  3. Step 3: Cross multiply
    111,309.71x = 166,962.78 × 35,407.17
  4. Step 4: Simplify right side
    111,309.71x = 5,911,679,535.13
  5. Step 5: Solve for x
    x = 5,911,679,535.13/111,309.71
  6. Step 6: Final answer
    x = 53,110.19

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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.