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Finding the Fourth Proportional to 158,370.32, 237,590.49 and 87,256.32

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Solution

The fourth proportional to 158,370.32, 237,590.49 and 87,256.32 is: 130,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,370.32 : 237,590.49 = 87,256.32 : x
  2. Step 2: Convert to fraction form
    158,370.32/237,590.49 = 87,256.32/x
  3. Step 3: Cross multiply
    158,370.32x = 237,590.49 × 87,256.32
  4. Step 4: Simplify right side
    158,370.32x = 20,731,271,824.40
  5. Step 5: Solve for x
    x = 20,731,271,824.40/158,370.32
  6. Step 6: Final answer
    x = 130,903.77

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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.