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Finding the Fourth Proportional to 173,753.40, 260,435.70 and 98,909.40

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Solution

The fourth proportional to 173,753.40, 260,435.70 and 98,909.40 is: 148,253.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,753.40 : 260,435.70 = 98,909.40 : x
  2. Step 2: Convert to fraction form
    173,753.40/260,435.70 = 98,909.40/x
  3. Step 3: Cross multiply
    173,753.40x = 260,435.70 × 98,909.40
  4. Step 4: Simplify right side
    173,753.40x = 25,759,538,825.58
  5. Step 5: Solve for x
    x = 25,759,538,825.58/173,753.40
  6. Step 6: Final answer
    x = 148,253.44

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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.