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Finding the Fourth Proportional to 157,653.32, 217,566.35 and 89,680.05

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Solution

The fourth proportional to 157,653.32, 217,566.35 and 89,680.05 is: 123,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,653.32 : 217,566.35 = 89,680.05 : x
  2. Step 2: Convert to fraction form
    157,653.32/217,566.35 = 89,680.05/x
  3. Step 3: Cross multiply
    157,653.32x = 217,566.35 × 89,680.05
  4. Step 4: Simplify right side
    157,653.32x = 19,511,360,697.92
  5. Step 5: Solve for x
    x = 19,511,360,697.92/157,653.32
  6. Step 6: Final answer
    x = 123,761.18

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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.