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Finding the Fourth Proportional to 127,036.96, 174,870.90 and 109,801.42

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Solution

The fourth proportional to 127,036.96, 174,870.90 and 109,801.42 is: 151,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,036.96 : 174,870.90 = 109,801.42 : x
  2. Step 2: Convert to fraction form
    127,036.96/174,870.90 = 109,801.42/x
  3. Step 3: Cross multiply
    127,036.96x = 174,870.90 × 109,801.42
  4. Step 4: Simplify right side
    127,036.96x = 19,201,073,136.68
  5. Step 5: Solve for x
    x = 19,201,073,136.68/127,036.96
  6. Step 6: Final answer
    x = 151,145.57

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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.