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Finding the Fourth Proportional to 476,854.82, 715,139.52 and 156,947.62

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Solution

The fourth proportional to 476,854.82, 715,139.52 and 156,947.62 is: 235,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,854.82 : 715,139.52 = 156,947.62 : x
  2. Step 2: Convert to fraction form
    476,854.82/715,139.52 = 156,947.62/x
  3. Step 3: Cross multiply
    476,854.82x = 715,139.52 × 156,947.62
  4. Step 4: Simplify right side
    476,854.82x = 112,239,445,631.94
  5. Step 5: Solve for x
    x = 112,239,445,631.94/476,854.82
  6. Step 6: Final answer
    x = 235,374.46

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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.