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Finding the Fourth Proportional to 158,113.76, 237,005.40 and 69,292.40

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Solution

The fourth proportional to 158,113.76, 237,005.40 and 69,292.40 is: 103,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,113.76 : 237,005.40 = 69,292.40 : x
  2. Step 2: Convert to fraction form
    158,113.76/237,005.40 = 69,292.40/x
  3. Step 3: Cross multiply
    158,113.76x = 237,005.40 × 69,292.40
  4. Step 4: Simplify right side
    158,113.76x = 16,422,672,978.96
  5. Step 5: Solve for x
    x = 16,422,672,978.96/158,113.76
  6. Step 6: Final answer
    x = 103,866.18

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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.