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Finding the Fourth Proportional to 153,661.03, 230,341.86 and 69,442.39

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Solution

The fourth proportional to 153,661.03, 230,341.86 and 69,442.39 is: 104,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,661.03 : 230,341.86 = 69,442.39 : x
  2. Step 2: Convert to fraction form
    153,661.03/230,341.86 = 69,442.39/x
  3. Step 3: Cross multiply
    153,661.03x = 230,341.86 × 69,442.39
  4. Step 4: Simplify right side
    153,661.03x = 15,995,489,275.45
  5. Step 5: Solve for x
    x = 15,995,489,275.45/153,661.03
  6. Step 6: Final answer
    x = 104,095.94

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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.