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Finding the Fourth Proportional to 555,873.30, 833,809.95 and 135,145.53

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Solution

The fourth proportional to 555,873.30, 833,809.95 and 135,145.53 is: 202,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,873.30 : 833,809.95 = 135,145.53 : x
  2. Step 2: Convert to fraction form
    555,873.30/833,809.95 = 135,145.53/x
  3. Step 3: Cross multiply
    555,873.30x = 833,809.95 × 135,145.53
  4. Step 4: Simplify right side
    555,873.30x = 112,685,687,612.02
  5. Step 5: Solve for x
    x = 112,685,687,612.02/555,873.30
  6. Step 6: Final answer
    x = 202,718.30

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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.