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Finding the Fourth Proportional to 79,463,368.80, 119,271,160.80 and 41,152,377.60

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Solution

The fourth proportional to 79,463,368.80, 119,271,160.80 and 41,152,377.60 is: 61,767,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,463,368.80 : 119,271,160.80 = 41,152,377.60 : x
  2. Step 2: Convert to fraction form
    79,463,368.80/119,271,160.80 = 41,152,377.60/x
  3. Step 3: Cross multiply
    79,463,368.80x = 119,271,160.80 × 41,152,377.60
  4. Step 4: Simplify right side
    79,463,368.80x = 4,908,291,846,031,918
  5. Step 5: Solve for x
    x = 4,908,291,846,031,918/79,463,368.80
  6. Step 6: Final answer
    x = 61,767,980.90

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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.