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Finding the Fourth Proportional to 193,080,916.80, 289,544,392.80 and 63,652,507.20

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Solution

The fourth proportional to 193,080,916.80, 289,544,392.80 and 63,652,507.20 is: 95,453,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,080,916.80 : 289,544,392.80 = 63,652,507.20 : x
  2. Step 2: Convert to fraction form
    193,080,916.80/289,544,392.80 = 63,652,507.20/x
  3. Step 3: Cross multiply
    193,080,916.80x = 289,544,392.80 × 63,652,507.20
  4. Step 4: Simplify right side
    193,080,916.80x = 18,430,226,547,421,628
  5. Step 5: Solve for x
    x = 18,430,226,547,421,628/193,080,916.80
  6. Step 6: Final answer
    x = 95,453,382.20

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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.