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Finding the Fourth Proportional to 98,047.16, 135,302.46 and 55,604.78

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Solution

The fourth proportional to 98,047.16, 135,302.46 and 55,604.78 is: 76,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,047.16 : 135,302.46 = 55,604.78 : x
  2. Step 2: Convert to fraction form
    98,047.16/135,302.46 = 55,604.78/x
  3. Step 3: Cross multiply
    98,047.16x = 135,302.46 × 55,604.78
  4. Step 4: Simplify right side
    98,047.16x = 7,523,463,482.37
  5. Step 5: Solve for x
    x = 7,523,463,482.37/98,047.16
  6. Step 6: Final answer
    x = 76,733.11

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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.