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Finding the Fourth Proportional to 104,930.40, 147,271.20 and 104,930.40

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Solution

The fourth proportional to 104,930.40, 147,271.20 and 104,930.40 is: 147,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,930.40 : 147,271.20 = 104,930.40 : x
  2. Step 2: Convert to fraction form
    104,930.40/147,271.20 = 104,930.40/x
  3. Step 3: Cross multiply
    104,930.40x = 147,271.20 × 104,930.40
  4. Step 4: Simplify right side
    104,930.40x = 15,453,225,924.48
  5. Step 5: Solve for x
    x = 15,453,225,924.48/104,930.40
  6. Step 6: Final answer
    x = 147,271.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.