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Finding the Fourth Proportional to 329,854,278.60, 494,655,446.70 and 99,746,886.60

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Solution

The fourth proportional to 329,854,278.60, 494,655,446.70 and 99,746,886.60 is: 149,582,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,854,278.60 : 494,655,446.70 = 99,746,886.60 : x
  2. Step 2: Convert to fraction form
    329,854,278.60/494,655,446.70 = 99,746,886.60/x
  3. Step 3: Cross multiply
    329,854,278.60x = 494,655,446.70 × 99,746,886.60
  4. Step 4: Simplify right side
    329,854,278.60x = 49,340,340,748,057,240
  5. Step 5: Solve for x
    x = 49,340,340,748,057,240/329,854,278.60
  6. Step 6: Final answer
    x = 149,582,236.61

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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.