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Finding the Fourth Proportional to 358,528.95, 537,667.97 and 105,742.32

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Solution

The fourth proportional to 358,528.95, 537,667.97 and 105,742.32 is: 158,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,528.95 : 537,667.97 = 105,742.32 : x
  2. Step 2: Convert to fraction form
    358,528.95/537,667.97 = 105,742.32/x
  3. Step 3: Cross multiply
    358,528.95x = 537,667.97 × 105,742.32
  4. Step 4: Simplify right side
    358,528.95x = 56,854,258,008.78
  5. Step 5: Solve for x
    x = 56,854,258,008.78/358,528.95
  6. Step 6: Final answer
    x = 158,576.48

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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.