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Finding the Fourth Proportional to 129,029,661.60, 193,544,492.40 and 129,029,661.60

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Solution

The fourth proportional to 129,029,661.60, 193,544,492.40 and 129,029,661.60 is: 193,544,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,029,661.60 : 193,544,492.40 = 129,029,661.60 : x
  2. Step 2: Convert to fraction form
    129,029,661.60/193,544,492.40 = 129,029,661.60/x
  3. Step 3: Cross multiply
    129,029,661.60x = 193,544,492.40 × 129,029,661.60
  4. Step 4: Simplify right side
    129,029,661.60x = 24,972,980,358,915,772
  5. Step 5: Solve for x
    x = 24,972,980,358,915,772/129,029,661.60
  6. Step 6: Final answer
    x = 193,544,492.40

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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.