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Finding the Fourth Proportional to 173,487.40, 260,231.10 and 103,503.40

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Solution

The fourth proportional to 173,487.40, 260,231.10 and 103,503.40 is: 155,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,487.40 : 260,231.10 = 103,503.40 : x
  2. Step 2: Convert to fraction form
    173,487.40/260,231.10 = 103,503.40/x
  3. Step 3: Cross multiply
    173,487.40x = 260,231.10 × 103,503.40
  4. Step 4: Simplify right side
    173,487.40x = 26,934,803,635.74
  5. Step 5: Solve for x
    x = 26,934,803,635.74/173,487.40
  6. Step 6: Final answer
    x = 155,255.10

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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.