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Finding the Fourth Proportional to 137,312.80, 192,514.40 and 137,312.80

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Solution

The fourth proportional to 137,312.80, 192,514.40 and 137,312.80 is: 192,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,312.80 : 192,514.40 = 137,312.80 : x
  2. Step 2: Convert to fraction form
    137,312.80/192,514.40 = 137,312.80/x
  3. Step 3: Cross multiply
    137,312.80x = 192,514.40 × 137,312.80
  4. Step 4: Simplify right side
    137,312.80x = 26,434,691,304.32
  5. Step 5: Solve for x
    x = 26,434,691,304.32/137,312.80
  6. Step 6: Final answer
    x = 192,514.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.