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Finding the Fourth Proportional to 151,461.30, 211,631.10 and 151,461.30

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Solution

The fourth proportional to 151,461.30, 211,631.10 and 151,461.30 is: 211,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,461.30 : 211,631.10 = 151,461.30 : x
  2. Step 2: Convert to fraction form
    151,461.30/211,631.10 = 151,461.30/x
  3. Step 3: Cross multiply
    151,461.30x = 211,631.10 × 151,461.30
  4. Step 4: Simplify right side
    151,461.30x = 32,053,921,526.43
  5. Step 5: Solve for x
    x = 32,053,921,526.43/151,461.30
  6. Step 6: Final answer
    x = 211,631.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.