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Finding the Fourth Proportional to 100,602,001.80, 150,903,002.70 and 99,964,272.60

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Solution

The fourth proportional to 100,602,001.80, 150,903,002.70 and 99,964,272.60 is: 149,946,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,001.80 : 150,903,002.70 = 99,964,272.60 : x
  2. Step 2: Convert to fraction form
    100,602,001.80/150,903,002.70 = 99,964,272.60/x
  3. Step 3: Cross multiply
    100,602,001.80x = 150,903,002.70 × 99,964,272.60
  4. Step 4: Simplify right side
    100,602,001.80x = 15,084,908,898,061,334
  5. Step 5: Solve for x
    x = 15,084,908,898,061,334/100,602,001.80
  6. Step 6: Final answer
    x = 149,946,408.90

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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.