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Finding the Fourth Proportional to 355,030.98, 532,431.45 and 118,310.10

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Solution

The fourth proportional to 355,030.98, 532,431.45 and 118,310.10 is: 177,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,030.98 : 532,431.45 = 118,310.10 : x
  2. Step 2: Convert to fraction form
    355,030.98/532,431.45 = 118,310.10/x
  3. Step 3: Cross multiply
    355,030.98x = 532,431.45 × 118,310.10
  4. Step 4: Simplify right side
    355,030.98x = 62,992,018,092.65
  5. Step 5: Solve for x
    x = 62,992,018,092.65/355,030.98
  6. Step 6: Final answer
    x = 177,426.82

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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.