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Finding the Fourth Proportional to 158,600.61, 218,875.16 and 86,983.25

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Solution

The fourth proportional to 158,600.61, 218,875.16 and 86,983.25 is: 120,040.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,600.61 : 218,875.16 = 86,983.25 : x
  2. Step 2: Convert to fraction form
    158,600.61/218,875.16 = 86,983.25/x
  3. Step 3: Cross multiply
    158,600.61x = 218,875.16 × 86,983.25
  4. Step 4: Simplify right side
    158,600.61x = 19,038,471,884.15
  5. Step 5: Solve for x
    x = 19,038,471,884.15/158,600.61
  6. Step 6: Final answer
    x = 120,040.34

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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.