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Finding the Fourth Proportional to 158,593.16, 218,864.86 and 86,975.76

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Solution

The fourth proportional to 158,593.16, 218,864.86 and 86,975.76 is: 120,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,593.16 : 218,864.86 = 86,975.76 : x
  2. Step 2: Convert to fraction form
    158,593.16/218,864.86 = 86,975.76/x
  3. Step 3: Cross multiply
    158,593.16x = 218,864.86 × 86,975.76
  4. Step 4: Simplify right side
    158,593.16x = 19,035,937,535.79
  5. Step 5: Solve for x
    x = 19,035,937,535.79/158,593.16
  6. Step 6: Final answer
    x = 120,030.00

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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.