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Finding the Fourth Proportional to 101,064,142.80, 151,383,637.80 and 84,058,030.80

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Solution

The fourth proportional to 101,064,142.80, 151,383,637.80 and 84,058,030.80 is: 125,910,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,064,142.80 : 151,383,637.80 = 84,058,030.80 : x
  2. Step 2: Convert to fraction form
    101,064,142.80/151,383,637.80 = 84,058,030.80/x
  3. Step 3: Cross multiply
    101,064,142.80x = 151,383,637.80 × 84,058,030.80
  4. Step 4: Simplify right side
    101,064,142.80x = 12,725,010,488,808,444
  5. Step 5: Solve for x
    x = 12,725,010,488,808,444/101,064,142.80
  6. Step 6: Final answer
    x = 125,910,240.13

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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.