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Finding the Fourth Proportional to 107,058.80, 147,810.47 and 68,835.51

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Solution

The fourth proportional to 107,058.80, 147,810.47 and 68,835.51 is: 95,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,058.80 : 147,810.47 = 68,835.51 : x
  2. Step 2: Convert to fraction form
    107,058.80/147,810.47 = 68,835.51/x
  3. Step 3: Cross multiply
    107,058.80x = 147,810.47 × 68,835.51
  4. Step 4: Simplify right side
    107,058.80x = 10,174,608,741.61
  5. Step 5: Solve for x
    x = 10,174,608,741.61/107,058.80
  6. Step 6: Final answer
    x = 95,037.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.