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Finding the Fourth Proportional to 173,953.40, 260,735.70 and 99,109.40

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Solution

The fourth proportional to 173,953.40, 260,735.70 and 99,109.40 is: 148,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,953.40 : 260,735.70 = 99,109.40 : x
  2. Step 2: Convert to fraction form
    173,953.40/260,735.70 = 99,109.40/x
  3. Step 3: Cross multiply
    173,953.40x = 260,735.70 × 99,109.40
  4. Step 4: Simplify right side
    173,953.40x = 25,841,358,785.58
  5. Step 5: Solve for x
    x = 25,841,358,785.58/173,953.40
  6. Step 6: Final answer
    x = 148,553.34

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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.