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Finding the Fourth Proportional to 386,598,011.88, 579,951,492.22 and 124,194,574.88

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Solution

The fourth proportional to 386,598,011.88, 579,951,492.22 and 124,194,574.88 is: 186,309,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,598,011.88 : 579,951,492.22 = 124,194,574.88 : x
  2. Step 2: Convert to fraction form
    386,598,011.88/579,951,492.22 = 124,194,574.88/x
  3. Step 3: Cross multiply
    386,598,011.88x = 579,951,492.22 × 124,194,574.88
  4. Step 4: Simplify right side
    386,598,011.88x = 72,026,829,027,284,528
  5. Step 5: Solve for x
    x = 72,026,829,027,284,528/386,598,011.88
  6. Step 6: Final answer
    x = 186,309,362.22

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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.