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Finding the Fourth Proportional to 268,590.10, 370,663.29 and 147,740.74

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Solution

The fourth proportional to 268,590.10, 370,663.29 and 147,740.74 is: 203,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,590.10 : 370,663.29 = 147,740.74 : x
  2. Step 2: Convert to fraction form
    268,590.10/370,663.29 = 147,740.74/x
  3. Step 3: Cross multiply
    268,590.10x = 370,663.29 × 147,740.74
  4. Step 4: Simplify right side
    268,590.10x = 54,762,068,755.43
  5. Step 5: Solve for x
    x = 54,762,068,755.43/268,590.10
  6. Step 6: Final answer
    x = 203,887.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.