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Finding the Fourth Proportional to 158,718.40, 238,077.60 and 156,385.60

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Solution

The fourth proportional to 158,718.40, 238,077.60 and 156,385.60 is: 234,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,718.40 : 238,077.60 = 156,385.60 : x
  2. Step 2: Convert to fraction form
    158,718.40/238,077.60 = 156,385.60/x
  3. Step 3: Cross multiply
    158,718.40x = 238,077.60 × 156,385.60
  4. Step 4: Simplify right side
    158,718.40x = 37,231,908,322.56
  5. Step 5: Solve for x
    x = 37,231,908,322.56/158,718.40
  6. Step 6: Final answer
    x = 234,578.40

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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.