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Finding the Fourth Proportional to 193,155,461.80, 289,733,192.70 and 63,783,039.40

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Solution

The fourth proportional to 193,155,461.80, 289,733,192.70 and 63,783,039.40 is: 95,674,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,155,461.80 : 289,733,192.70 = 63,783,039.40 : x
  2. Step 2: Convert to fraction form
    193,155,461.80/289,733,192.70 = 63,783,039.40/x
  3. Step 3: Cross multiply
    193,155,461.80x = 289,733,192.70 × 63,783,039.40
  4. Step 4: Simplify right side
    193,155,461.80x = 18,480,063,645,471,892
  5. Step 5: Solve for x
    x = 18,480,063,645,471,892/193,155,461.80
  6. Step 6: Final answer
    x = 95,674,559.10

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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.