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Finding the Fourth Proportional to 103,554.70, 155,332.05 and 97,722.70

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Solution

The fourth proportional to 103,554.70, 155,332.05 and 97,722.70 is: 146,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.70 : 155,332.05 = 97,722.70 : x
  2. Step 2: Convert to fraction form
    103,554.70/155,332.05 = 97,722.70/x
  3. Step 3: Cross multiply
    103,554.70x = 155,332.05 × 97,722.70
  4. Step 4: Simplify right side
    103,554.70x = 15,179,467,322.54
  5. Step 5: Solve for x
    x = 15,179,467,322.54/103,554.70
  6. Step 6: Final answer
    x = 146,584.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.