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Finding the Fourth Proportional to 159,075.92, 219,524.92 and 87,457.16

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Solution

The fourth proportional to 159,075.92, 219,524.92 and 87,457.16 is: 120,690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,075.92 : 219,524.92 = 87,457.16 : x
  2. Step 2: Convert to fraction form
    159,075.92/219,524.92 = 87,457.16/x
  3. Step 3: Cross multiply
    159,075.92x = 219,524.92 × 87,457.16
  4. Step 4: Simplify right side
    159,075.92x = 19,199,026,052.43
  5. Step 5: Solve for x
    x = 19,199,026,052.43/159,075.92
  6. Step 6: Final answer
    x = 120,690.96

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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.