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Finding the Fourth Proportional to 154,928.40, 232,403.64 and 64,880.40

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Solution

The fourth proportional to 154,928.40, 232,403.64 and 64,880.40 is: 97,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,928.40 : 232,403.64 = 64,880.40 : x
  2. Step 2: Convert to fraction form
    154,928.40/232,403.64 = 64,880.40/x
  3. Step 3: Cross multiply
    154,928.40x = 232,403.64 × 64,880.40
  4. Step 4: Simplify right side
    154,928.40x = 15,078,441,124.66
  5. Step 5: Solve for x
    x = 15,078,441,124.66/154,928.40
  6. Step 6: Final answer
    x = 97,325.22

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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.