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Finding the Fourth Proportional to 358,537.12, 537,680.16 and 105,750.64

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Solution

The fourth proportional to 358,537.12, 537,680.16 and 105,750.64 is: 158,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,537.12 : 537,680.16 = 105,750.64 : x
  2. Step 2: Convert to fraction form
    358,537.12/537,680.16 = 105,750.64/x
  3. Step 3: Cross multiply
    358,537.12x = 537,680.16 × 105,750.64
  4. Step 4: Simplify right side
    358,537.12x = 56,860,021,035.30
  5. Step 5: Solve for x
    x = 56,860,021,035.30/358,537.12
  6. Step 6: Final answer
    x = 158,588.94

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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.