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Finding the Fourth Proportional to 342,576.59, 513,852.54 and 89,855.06

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Solution

The fourth proportional to 342,576.59, 513,852.54 and 89,855.06 is: 134,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,576.59 : 513,852.54 = 89,855.06 : x
  2. Step 2: Convert to fraction form
    342,576.59/513,852.54 = 89,855.06/x
  3. Step 3: Cross multiply
    342,576.59x = 513,852.54 × 89,855.06
  4. Step 4: Simplify right side
    342,576.59x = 46,172,248,243.59
  5. Step 5: Solve for x
    x = 46,172,248,243.59/342,576.59
  6. Step 6: Final answer
    x = 134,779.35

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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.