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Finding the Fourth Proportional to 121,558.59, 167,654.41 and 73,810.91

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Solution

The fourth proportional to 121,558.59, 167,654.41 and 73,810.91 is: 101,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,558.59 : 167,654.41 = 73,810.91 : x
  2. Step 2: Convert to fraction form
    121,558.59/167,654.41 = 73,810.91/x
  3. Step 3: Cross multiply
    121,558.59x = 167,654.41 × 73,810.91
  4. Step 4: Simplify right side
    121,558.59x = 12,374,724,802.22
  5. Step 5: Solve for x
    x = 12,374,724,802.22/121,558.59
  6. Step 6: Final answer
    x = 101,800.50

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1.5x scale

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.