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Finding the Fourth Proportional to 448,396,543.80, 672,594,815.70 and 157,592,028.60

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Solution

The fourth proportional to 448,396,543.80, 672,594,815.70 and 157,592,028.60 is: 236,388,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,396,543.80 : 672,594,815.70 = 157,592,028.60 : x
  2. Step 2: Convert to fraction form
    448,396,543.80/672,594,815.70 = 157,592,028.60/x
  3. Step 3: Cross multiply
    448,396,543.80x = 672,594,815.70 × 157,592,028.60
  4. Step 4: Simplify right side
    448,396,543.80x = 105,995,581,432,006,128
  5. Step 5: Solve for x
    x = 105,995,581,432,006,128/448,396,543.80
  6. Step 6: Final answer
    x = 236,388,042.90

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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.