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Finding the Fourth Proportional to 578,093.40, 867,140.10 and 157,368.60

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Solution

The fourth proportional to 578,093.40, 867,140.10 and 157,368.60 is: 236,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,093.40 : 867,140.10 = 157,368.60 : x
  2. Step 2: Convert to fraction form
    578,093.40/867,140.10 = 157,368.60/x
  3. Step 3: Cross multiply
    578,093.40x = 867,140.10 × 157,368.60
  4. Step 4: Simplify right side
    578,093.40x = 136,460,623,540.86
  5. Step 5: Solve for x
    x = 136,460,623,540.86/578,093.40
  6. Step 6: Final answer
    x = 236,052.90

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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.