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Finding the Fourth Proportional to 210,893,713.50, 316,391,076.60 and 88,003,669.86

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Solution

The fourth proportional to 210,893,713.50, 316,391,076.60 and 88,003,669.86 is: 132,026,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,893,713.50 : 316,391,076.60 = 88,003,669.86 : x
  2. Step 2: Convert to fraction form
    210,893,713.50/316,391,076.60 = 88,003,669.86/x
  3. Step 3: Cross multiply
    210,893,713.50x = 316,391,076.60 × 88,003,669.86
  4. Step 4: Simplify right side
    210,893,713.50x = 27,843,575,851,756,372
  5. Step 5: Solve for x
    x = 27,843,575,851,756,372/210,893,713.50
  6. Step 6: Final answer
    x = 132,026,580.54

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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.