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Finding the Fourth Proportional to 158,874.52, 219,246.72 and 87,259.06

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Solution

The fourth proportional to 158,874.52, 219,246.72 and 87,259.06 is: 120,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,874.52 : 219,246.72 = 87,259.06 : x
  2. Step 2: Convert to fraction form
    158,874.52/219,246.72 = 87,259.06/x
  3. Step 3: Cross multiply
    158,874.52x = 219,246.72 × 87,259.06
  4. Step 4: Simplify right side
    158,874.52x = 19,131,262,695.28
  5. Step 5: Solve for x
    x = 19,131,262,695.28/158,874.52
  6. Step 6: Final answer
    x = 120,417.44

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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.