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Finding the Fourth Proportional to 158,995.20, 238,492.80 and 156,662.40

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Solution

The fourth proportional to 158,995.20, 238,492.80 and 156,662.40 is: 234,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,995.20 : 238,492.80 = 156,662.40 : x
  2. Step 2: Convert to fraction form
    158,995.20/238,492.80 = 156,662.40/x
  3. Step 3: Cross multiply
    158,995.20x = 238,492.80 × 156,662.40
  4. Step 4: Simplify right side
    158,995.20x = 37,362,854,430.72
  5. Step 5: Solve for x
    x = 37,362,854,430.72/158,995.20
  6. Step 6: Final answer
    x = 234,993.60

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1.5x scale

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.