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Finding the Fourth Proportional to 173,644.40, 260,466.60 and 48,985.40

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Solution

The fourth proportional to 173,644.40, 260,466.60 and 48,985.40 is: 73,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,644.40 : 260,466.60 = 48,985.40 : x
  2. Step 2: Convert to fraction form
    173,644.40/260,466.60 = 48,985.40/x
  3. Step 3: Cross multiply
    173,644.40x = 260,466.60 × 48,985.40
  4. Step 4: Simplify right side
    173,644.40x = 12,759,060,587.64
  5. Step 5: Solve for x
    x = 12,759,060,587.64/173,644.40
  6. Step 6: Final answer
    x = 73,478.10

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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.