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Finding the Fourth Proportional to 291,279,804.49, 436,923,493.02 and 97,191,219.67

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Solution

The fourth proportional to 291,279,804.49, 436,923,493.02 and 97,191,219.67 is: 145,788,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,279,804.49 : 436,923,493.02 = 97,191,219.67 : x
  2. Step 2: Convert to fraction form
    291,279,804.49/436,923,493.02 = 97,191,219.67/x
  3. Step 3: Cross multiply
    291,279,804.49x = 436,923,493.02 × 97,191,219.67
  4. Step 4: Simplify right side
    291,279,804.49x = 42,465,127,189,090,528
  5. Step 5: Solve for x
    x = 42,465,127,189,090,528/291,279,804.49
  6. Step 6: Final answer
    x = 145,788,092.87

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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.