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Finding the Fourth Proportional to 173,608.20, 260,412.30 and 42,280.20

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Solution

The fourth proportional to 173,608.20, 260,412.30 and 42,280.20 is: 63,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,608.20 : 260,412.30 = 42,280.20 : x
  2. Step 2: Convert to fraction form
    173,608.20/260,412.30 = 42,280.20/x
  3. Step 3: Cross multiply
    173,608.20x = 260,412.30 × 42,280.20
  4. Step 4: Simplify right side
    173,608.20x = 11,010,284,126.46
  5. Step 5: Solve for x
    x = 11,010,284,126.46/173,608.20
  6. Step 6: Final answer
    x = 63,420.30

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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.