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Finding the Fourth Proportional to 208,044.10, 312,066.15 and 187,048.90

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Solution

The fourth proportional to 208,044.10, 312,066.15 and 187,048.90 is: 280,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,044.10 : 312,066.15 = 187,048.90 : x
  2. Step 2: Convert to fraction form
    208,044.10/312,066.15 = 187,048.90/x
  3. Step 3: Cross multiply
    208,044.10x = 312,066.15 × 187,048.90
  4. Step 4: Simplify right side
    208,044.10x = 58,371,630,084.74
  5. Step 5: Solve for x
    x = 58,371,630,084.74/208,044.10
  6. Step 6: Final answer
    x = 280,573.35

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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.