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Finding the Fourth Proportional to 173,056.40, 259,066.20 and 102,899.60

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Solution

The fourth proportional to 173,056.40, 259,066.20 and 102,899.60 is: 154,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,056.40 : 259,066.20 = 102,899.60 : x
  2. Step 2: Convert to fraction form
    173,056.40/259,066.20 = 102,899.60/x
  3. Step 3: Cross multiply
    173,056.40x = 259,066.20 × 102,899.60
  4. Step 4: Simplify right side
    173,056.40x = 26,657,808,353.52
  5. Step 5: Solve for x
    x = 26,657,808,353.52/173,056.40
  6. Step 6: Final answer
    x = 154,041.16

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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.