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Finding the Fourth Proportional to 104,699.79, 157,046.85 and 25,814.70

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Solution

The fourth proportional to 104,699.79, 157,046.85 and 25,814.70 is: 38,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,699.79 : 157,046.85 = 25,814.70 : x
  2. Step 2: Convert to fraction form
    104,699.79/157,046.85 = 25,814.70/x
  3. Step 3: Cross multiply
    104,699.79x = 157,046.85 × 25,814.70
  4. Step 4: Simplify right side
    104,699.79x = 4,054,117,318.70
  5. Step 5: Solve for x
    x = 4,054,117,318.70/104,699.79
  6. Step 6: Final answer
    x = 38,721.35

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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.