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Finding the Fourth Proportional to 172,021,302.20, 258,031,953.30 and 172,021,302.20

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Solution

The fourth proportional to 172,021,302.20, 258,031,953.30 and 172,021,302.20 is: 258,031,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,021,302.20 : 258,031,953.30 = 172,021,302.20 : x
  2. Step 2: Convert to fraction form
    172,021,302.20/258,031,953.30 = 172,021,302.20/x
  3. Step 3: Cross multiply
    172,021,302.20x = 258,031,953.30 × 172,021,302.20
  4. Step 4: Simplify right side
    172,021,302.20x = 44,386,992,615,875,584
  5. Step 5: Solve for x
    x = 44,386,992,615,875,584/172,021,302.20
  6. Step 6: Final answer
    x = 258,031,953.30

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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.