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Finding the Fourth Proportional to 348,539.51, 522,809.19 and 99,221.51

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Solution

The fourth proportional to 348,539.51, 522,809.19 and 99,221.51 is: 148,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,539.51 : 522,809.19 = 99,221.51 : x
  2. Step 2: Convert to fraction form
    348,539.51/522,809.19 = 99,221.51/x
  3. Step 3: Cross multiply
    348,539.51x = 522,809.19 × 99,221.51
  4. Step 4: Simplify right side
    348,539.51x = 51,873,914,659.63
  5. Step 5: Solve for x
    x = 51,873,914,659.63/348,539.51
  6. Step 6: Final answer
    x = 148,832.24

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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.