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Finding the Fourth Proportional to 153,973.20, 230,844.60 and 83,931.60

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Solution

The fourth proportional to 153,973.20, 230,844.60 and 83,931.60 is: 125,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,973.20 : 230,844.60 = 83,931.60 : x
  2. Step 2: Convert to fraction form
    153,973.20/230,844.60 = 83,931.60/x
  3. Step 3: Cross multiply
    153,973.20x = 230,844.60 × 83,931.60
  4. Step 4: Simplify right side
    153,973.20x = 19,375,156,629.36
  5. Step 5: Solve for x
    x = 19,375,156,629.36/153,973.20
  6. Step 6: Final answer
    x = 125,834.60

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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.