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Finding the Fourth Proportional to 174,018.40, 260,854.80 and 80,360.80

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Solution

The fourth proportional to 174,018.40, 260,854.80 and 80,360.80 is: 120,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,018.40 : 260,854.80 = 80,360.80 : x
  2. Step 2: Convert to fraction form
    174,018.40/260,854.80 = 80,360.80/x
  3. Step 3: Cross multiply
    174,018.40x = 260,854.80 × 80,360.80
  4. Step 4: Simplify right side
    174,018.40x = 20,962,500,411.84
  5. Step 5: Solve for x
    x = 20,962,500,411.84/174,018.40
  6. Step 6: Final answer
    x = 120,461.40

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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.