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Finding the Fourth Proportional to 133,718.76, 184,615.92 and 86,055.12

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Solution

The fourth proportional to 133,718.76, 184,615.92 and 86,055.12 is: 118,810.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,718.76 : 184,615.92 = 86,055.12 : x
  2. Step 2: Convert to fraction form
    133,718.76/184,615.92 = 86,055.12/x
  3. Step 3: Cross multiply
    133,718.76x = 184,615.92 × 86,055.12
  4. Step 4: Simplify right side
    133,718.76x = 15,887,145,149.51
  5. Step 5: Solve for x
    x = 15,887,145,149.51/133,718.76
  6. Step 6: Final answer
    x = 118,810.14

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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.