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Finding the Fourth Proportional to 118,413,824.80, 177,368,794.80 and 98,258,432.80

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Solution

The fourth proportional to 118,413,824.80, 177,368,794.80 and 98,258,432.80 is: 147,178,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,413,824.80 : 177,368,794.80 = 98,258,432.80 : x
  2. Step 2: Convert to fraction form
    118,413,824.80/177,368,794.80 = 98,258,432.80/x
  3. Step 3: Cross multiply
    118,413,824.80x = 177,368,794.80 × 98,258,432.80
  4. Step 4: Simplify right side
    118,413,824.80x = 17,427,979,804,672,790
  5. Step 5: Solve for x
    x = 17,427,979,804,672,790/118,413,824.80
  6. Step 6: Final answer
    x = 147,178,590.29

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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.