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Finding the Fourth Proportional to 116,009.50, 173,986.88 and 65,430.22

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Solution

The fourth proportional to 116,009.50, 173,986.88 and 65,430.22 is: 98,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,009.50 : 173,986.88 = 65,430.22 : x
  2. Step 2: Convert to fraction form
    116,009.50/173,986.88 = 65,430.22/x
  3. Step 3: Cross multiply
    116,009.50x = 173,986.88 × 65,430.22
  4. Step 4: Simplify right side
    116,009.50x = 11,383,999,835.51
  5. Step 5: Solve for x
    x = 11,383,999,835.51/116,009.50
  6. Step 6: Final answer
    x = 98,129.89

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1.5x scale

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.