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Finding the Fourth Proportional to 113,480.40, 169,913.40 and 88,904.40

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Solution

The fourth proportional to 113,480.40, 169,913.40 and 88,904.40 is: 133,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,480.40 : 169,913.40 = 88,904.40 : x
  2. Step 2: Convert to fraction form
    113,480.40/169,913.40 = 88,904.40/x
  3. Step 3: Cross multiply
    113,480.40x = 169,913.40 × 88,904.40
  4. Step 4: Simplify right side
    113,480.40x = 15,106,048,878.96
  5. Step 5: Solve for x
    x = 15,106,048,878.96/113,480.40
  6. Step 6: Final answer
    x = 133,115.93

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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.