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Finding the Fourth Proportional to 180,672,866.22, 270,856,948.04 and 78,359,841.66

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Solution

The fourth proportional to 180,672,866.22, 270,856,948.04 and 78,359,841.66 is: 117,473,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,672,866.22 : 270,856,948.04 = 78,359,841.66 : x
  2. Step 2: Convert to fraction form
    180,672,866.22/270,856,948.04 = 78,359,841.66/x
  3. Step 3: Cross multiply
    180,672,866.22x = 270,856,948.04 × 78,359,841.66
  4. Step 4: Simplify right side
    180,672,866.22x = 21,224,307,560,925,248
  5. Step 5: Solve for x
    x = 21,224,307,560,925,248/180,672,866.22
  6. Step 6: Final answer
    x = 117,473,686.03

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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.