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Finding the Fourth Proportional to 153,647.60, 212,047.61 and 93,233.54

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Solution

The fourth proportional to 153,647.60, 212,047.61 and 93,233.54 is: 128,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,647.60 : 212,047.61 = 93,233.54 : x
  2. Step 2: Convert to fraction form
    153,647.60/212,047.61 = 93,233.54/x
  3. Step 3: Cross multiply
    153,647.60x = 212,047.61 × 93,233.54
  4. Step 4: Simplify right side
    153,647.60x = 19,769,949,392.79
  5. Step 5: Solve for x
    x = 19,769,949,392.79/153,647.60
  6. Step 6: Final answer
    x = 128,670.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.