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Finding the Fourth Proportional to 358,507.63, 537,776.28 and 105,788.11

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Solution

The fourth proportional to 358,507.63, 537,776.28 and 105,788.11 is: 158,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,507.63 : 537,776.28 = 105,788.11 : x
  2. Step 2: Convert to fraction form
    358,507.63/537,776.28 = 105,788.11/x
  3. Step 3: Cross multiply
    358,507.63x = 537,776.28 × 105,788.11
  4. Step 4: Simplify right side
    358,507.63x = 56,890,336,264.03
  5. Step 5: Solve for x
    x = 56,890,336,264.03/358,507.63
  6. Step 6: Final answer
    x = 158,686.54

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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.