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Finding the Fourth Proportional to 105,559.94, 145,669.86 and 60,237.11

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Solution

The fourth proportional to 105,559.94, 145,669.86 and 60,237.11 is: 83,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,559.94 : 145,669.86 = 60,237.11 : x
  2. Step 2: Convert to fraction form
    105,559.94/145,669.86 = 60,237.11/x
  3. Step 3: Cross multiply
    105,559.94x = 145,669.86 × 60,237.11
  4. Step 4: Simplify right side
    105,559.94x = 8,774,730,652.16
  5. Step 5: Solve for x
    x = 8,774,730,652.16/105,559.94
  6. Step 6: Final answer
    x = 83,125.58

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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.