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Finding the Fourth Proportional to 172,364,671.85, 258,527,909.03 and 61,695,921.79

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Solution

The fourth proportional to 172,364,671.85, 258,527,909.03 and 61,695,921.79 is: 92,537,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,364,671.85 : 258,527,909.03 = 61,695,921.79 : x
  2. Step 2: Convert to fraction form
    172,364,671.85/258,527,909.03 = 61,695,921.79/x
  3. Step 3: Cross multiply
    172,364,671.85x = 258,527,909.03 × 61,695,921.79
  4. Step 4: Simplify right side
    172,364,671.85x = 15,950,117,655,092,316
  5. Step 5: Solve for x
    x = 15,950,117,655,092,316/172,364,671.85
  6. Step 6: Final answer
    x = 92,537,046.51

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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.