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Finding the Fourth Proportional to 153,955.60, 231,127.80 and 82,934.80

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Solution

The fourth proportional to 153,955.60, 231,127.80 and 82,934.80 is: 124,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,955.60 : 231,127.80 = 82,934.80 : x
  2. Step 2: Convert to fraction form
    153,955.60/231,127.80 = 82,934.80/x
  3. Step 3: Cross multiply
    153,955.60x = 231,127.80 × 82,934.80
  4. Step 4: Simplify right side
    153,955.60x = 19,168,537,867.44
  5. Step 5: Solve for x
    x = 19,168,537,867.44/153,955.60
  6. Step 6: Final answer
    x = 124,506.92

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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.