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Finding the Fourth Proportional to 154,590.30, 217,048.50 and 154,590.30

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Solution

The fourth proportional to 154,590.30, 217,048.50 and 154,590.30 is: 217,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,590.30 : 217,048.50 = 154,590.30 : x
  2. Step 2: Convert to fraction form
    154,590.30/217,048.50 = 154,590.30/x
  3. Step 3: Cross multiply
    154,590.30x = 217,048.50 × 154,590.30
  4. Step 4: Simplify right side
    154,590.30x = 33,553,592,729.55
  5. Step 5: Solve for x
    x = 33,553,592,729.55/154,590.30
  6. Step 6: Final answer
    x = 217,048.50

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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.