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Finding the Fourth Proportional to 152,025.99, 209,811.15 and 84,048.12

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Solution

The fourth proportional to 152,025.99, 209,811.15 and 84,048.12 is: 115,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,025.99 : 209,811.15 = 84,048.12 : x
  2. Step 2: Convert to fraction form
    152,025.99/209,811.15 = 84,048.12/x
  3. Step 3: Cross multiply
    152,025.99x = 209,811.15 × 84,048.12
  4. Step 4: Simplify right side
    152,025.99x = 17,634,232,712.54
  5. Step 5: Solve for x
    x = 17,634,232,712.54/152,025.99
  6. Step 6: Final answer
    x = 115,994.86

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1.5x scale

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.