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Finding the Fourth Proportional to 70,496.88, 97,301.28 and 55,153.08

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Solution

The fourth proportional to 70,496.88, 97,301.28 and 55,153.08 is: 76,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,496.88 : 97,301.28 = 55,153.08 : x
  2. Step 2: Convert to fraction form
    70,496.88/97,301.28 = 55,153.08/x
  3. Step 3: Cross multiply
    70,496.88x = 97,301.28 × 55,153.08
  4. Step 4: Simplify right side
    70,496.88x = 5,366,465,279.94
  5. Step 5: Solve for x
    x = 5,366,465,279.94/70,496.88
  6. Step 6: Final answer
    x = 76,123.44

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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.