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Finding the Fourth Proportional to 153,607.70, 230,515.32 and 53,768.72

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Solution

The fourth proportional to 153,607.70, 230,515.32 and 53,768.72 is: 80,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,607.70 : 230,515.32 = 53,768.72 : x
  2. Step 2: Convert to fraction form
    153,607.70/230,515.32 = 53,768.72/x
  3. Step 3: Cross multiply
    153,607.70x = 230,515.32 × 53,768.72
  4. Step 4: Simplify right side
    153,607.70x = 12,394,513,696.79
  5. Step 5: Solve for x
    x = 12,394,513,696.79/153,607.70
  6. Step 6: Final answer
    x = 80,689.40

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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.