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Finding the Fourth Proportional to 201,653,061.20, 302,516,916.60 and 65,342,891.60

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Solution

The fourth proportional to 201,653,061.20, 302,516,916.60 and 65,342,891.60 is: 98,026,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,653,061.20 : 302,516,916.60 = 65,342,891.60 : x
  2. Step 2: Convert to fraction form
    201,653,061.20/302,516,916.60 = 65,342,891.60/x
  3. Step 3: Cross multiply
    201,653,061.20x = 302,516,916.60 × 65,342,891.60
  4. Step 4: Simplify right side
    201,653,061.20x = 19,767,330,088,560,044
  5. Step 5: Solve for x
    x = 19,767,330,088,560,044/201,653,061.20
  6. Step 6: Final answer
    x = 98,026,431.99

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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.