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Finding the Fourth Proportional to 152,563.92, 210,550.64 and 84,602.20

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Solution

The fourth proportional to 152,563.92, 210,550.64 and 84,602.20 is: 116,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,563.92 : 210,550.64 = 84,602.20 : x
  2. Step 2: Convert to fraction form
    152,563.92/210,550.64 = 84,602.20/x
  3. Step 3: Cross multiply
    152,563.92x = 210,550.64 × 84,602.20
  4. Step 4: Simplify right side
    152,563.92x = 17,813,047,355.41
  5. Step 5: Solve for x
    x = 17,813,047,355.41/152,563.92
  6. Step 6: Final answer
    x = 116,757.93

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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.