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Finding the Fourth Proportional to 144,891.90, 217,337.85 and 39,710.70

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Solution

The fourth proportional to 144,891.90, 217,337.85 and 39,710.70 is: 59,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,891.90 : 217,337.85 = 39,710.70 : x
  2. Step 2: Convert to fraction form
    144,891.90/217,337.85 = 39,710.70/x
  3. Step 3: Cross multiply
    144,891.90x = 217,337.85 × 39,710.70
  4. Step 4: Simplify right side
    144,891.90x = 8,630,638,160.00
  5. Step 5: Solve for x
    x = 8,630,638,160.00/144,891.90
  6. Step 6: Final answer
    x = 59,566.05

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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.