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Finding the Fourth Proportional to 452,751.36, 679,185.32 and 137,152.68

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Solution

The fourth proportional to 452,751.36, 679,185.32 and 137,152.68 is: 205,746.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,751.36 : 679,185.32 = 137,152.68 : x
  2. Step 2: Convert to fraction form
    452,751.36/679,185.32 = 137,152.68/x
  3. Step 3: Cross multiply
    452,751.36x = 679,185.32 × 137,152.68
  4. Step 4: Simplify right side
    452,751.36x = 93,152,086,854.66
  5. Step 5: Solve for x
    x = 93,152,086,854.66/452,751.36
  6. Step 6: Final answer
    x = 205,746.67

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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.