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Finding the Fourth Proportional to 99,201.70, 148,802.55 and 25,329.70

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Solution

The fourth proportional to 99,201.70, 148,802.55 and 25,329.70 is: 37,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,201.70 : 148,802.55 = 25,329.70 : x
  2. Step 2: Convert to fraction form
    99,201.70/148,802.55 = 25,329.70/x
  3. Step 3: Cross multiply
    99,201.70x = 148,802.55 × 25,329.70
  4. Step 4: Simplify right side
    99,201.70x = 3,769,123,950.74
  5. Step 5: Solve for x
    x = 3,769,123,950.74/99,201.70
  6. Step 6: Final answer
    x = 37,994.55

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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.