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Finding the Fourth Proportional to 158,718.79, 238,075.11 and 38,776.54

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Solution

The fourth proportional to 158,718.79, 238,075.11 and 38,776.54 is: 58,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,718.79 : 238,075.11 = 38,776.54 : x
  2. Step 2: Convert to fraction form
    158,718.79/238,075.11 = 38,776.54/x
  3. Step 3: Cross multiply
    158,718.79x = 238,075.11 × 38,776.54
  4. Step 4: Simplify right side
    158,718.79x = 9,231,727,927.27
  5. Step 5: Solve for x
    x = 9,231,727,927.27/158,718.79
  6. Step 6: Final answer
    x = 58,164.05

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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.