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Finding the Fourth Proportional to 181,691,707.80, 272,537,561.70 and 167,661,665.40

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Solution

The fourth proportional to 181,691,707.80, 272,537,561.70 and 167,661,665.40 is: 251,492,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,691,707.80 : 272,537,561.70 = 167,661,665.40 : x
  2. Step 2: Convert to fraction form
    181,691,707.80/272,537,561.70 = 167,661,665.40/x
  3. Step 3: Cross multiply
    181,691,707.80x = 272,537,561.70 × 167,661,665.40
  4. Step 4: Simplify right side
    181,691,707.80x = 45,694,101,478,677,256
  5. Step 5: Solve for x
    x = 45,694,101,478,677,256/181,691,707.80
  6. Step 6: Final answer
    x = 251,492,498.10

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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.