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Finding the Fourth Proportional to 153,285.74, 231,368.34 and 153,285.74

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Solution

The fourth proportional to 153,285.74, 231,368.34 and 153,285.74 is: 231,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,285.74 : 231,368.34 = 153,285.74 : x
  2. Step 2: Convert to fraction form
    153,285.74/231,368.34 = 153,285.74/x
  3. Step 3: Cross multiply
    153,285.74x = 231,368.34 × 153,285.74
  4. Step 4: Simplify right side
    153,285.74x = 35,465,465,286.20
  5. Step 5: Solve for x
    x = 35,465,465,286.20/153,285.74
  6. Step 6: Final answer
    x = 231,368.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.