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Finding the Fourth Proportional to 533,870.11, 800,780.19 and 154,779.58

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Solution

The fourth proportional to 533,870.11, 800,780.19 and 154,779.58 is: 232,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,870.11 : 800,780.19 = 154,779.58 : x
  2. Step 2: Convert to fraction form
    533,870.11/800,780.19 = 154,779.58/x
  3. Step 3: Cross multiply
    533,870.11x = 800,780.19 × 154,779.58
  4. Step 4: Simplify right side
    533,870.11x = 123,944,421,480.52
  5. Step 5: Solve for x
    x = 123,944,421,480.52/533,870.11
  6. Step 6: Final answer
    x = 232,162.13

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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.