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Finding the Fourth Proportional to 308,731,610.80, 463,097,416.20 and 155,676,602.80

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Solution

The fourth proportional to 308,731,610.80, 463,097,416.20 and 155,676,602.80 is: 233,514,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,731,610.80 : 463,097,416.20 = 155,676,602.80 : x
  2. Step 2: Convert to fraction form
    308,731,610.80/463,097,416.20 = 155,676,602.80/x
  3. Step 3: Cross multiply
    308,731,610.80x = 463,097,416.20 × 155,676,602.80
  4. Step 4: Simplify right side
    308,731,610.80x = 72,093,432,519,473,696
  5. Step 5: Solve for x
    x = 72,093,432,519,473,696/308,731,610.80
  6. Step 6: Final answer
    x = 233,514,904.20

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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.