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Finding the Fourth Proportional to 251,011,459.80, 376,517,189.70 and 251,011,459.80

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Solution

The fourth proportional to 251,011,459.80, 376,517,189.70 and 251,011,459.80 is: 376,517,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,011,459.80 : 376,517,189.70 = 251,011,459.80 : x
  2. Step 2: Convert to fraction form
    251,011,459.80/376,517,189.70 = 251,011,459.80/x
  3. Step 3: Cross multiply
    251,011,459.80x = 376,517,189.70 × 251,011,459.80
  4. Step 4: Simplify right side
    251,011,459.80x = 94,510,129,426,390,528
  5. Step 5: Solve for x
    x = 94,510,129,426,390,528/251,011,459.80
  6. Step 6: Final answer
    x = 376,517,189.70

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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.