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Finding the Fourth Proportional to 200,959,269.40, 301,438,904.10 and 64,644,652.90

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Solution

The fourth proportional to 200,959,269.40, 301,438,904.10 and 64,644,652.90 is: 96,966,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,959,269.40 : 301,438,904.10 = 64,644,652.90 : x
  2. Step 2: Convert to fraction form
    200,959,269.40/301,438,904.10 = 64,644,652.90/x
  3. Step 3: Cross multiply
    200,959,269.40x = 301,438,904.10 × 64,644,652.90
  4. Step 4: Simplify right side
    200,959,269.40x = 19,486,413,326,100,888
  5. Step 5: Solve for x
    x = 19,486,413,326,100,888/200,959,269.40
  6. Step 6: Final answer
    x = 96,966,979.35

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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.