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Finding the Fourth Proportional to 225,213, 310,797.87 and 123,247.50

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Solution

The fourth proportional to 225,213, 310,797.87 and 123,247.50 is: 170,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,213 : 310,797.87 = 123,247.50 : x
  2. Step 2: Convert to fraction form
    225,213/310,797.87 = 123,247.50/x
  3. Step 3: Cross multiply
    225,213x = 310,797.87 × 123,247.50
  4. Step 4: Simplify right side
    225,213x = 38,305,060,482.83
  5. Step 5: Solve for x
    x = 38,305,060,482.83/225,213
  6. Step 6: Final answer
    x = 170,083.70

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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.