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Finding the Fourth Proportional to 157,803.34, 217,768.85 and 89,820.32

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Solution

The fourth proportional to 157,803.34, 217,768.85 and 89,820.32 is: 123,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,803.34 : 217,768.85 = 89,820.32 : x
  2. Step 2: Convert to fraction form
    157,803.34/217,768.85 = 89,820.32/x
  3. Step 3: Cross multiply
    157,803.34x = 217,768.85 × 89,820.32
  4. Step 4: Simplify right side
    157,803.34x = 19,560,066,928.74
  5. Step 5: Solve for x
    x = 19,560,066,928.74/157,803.34
  6. Step 6: Final answer
    x = 123,952.18

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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.