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Finding the Fourth Proportional to 144,409.76, 216,284.08 and 88,125.95

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Solution

The fourth proportional to 144,409.76, 216,284.08 and 88,125.95 is: 131,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,409.76 : 216,284.08 = 88,125.95 : x
  2. Step 2: Convert to fraction form
    144,409.76/216,284.08 = 88,125.95/x
  3. Step 3: Cross multiply
    144,409.76x = 216,284.08 × 88,125.95
  4. Step 4: Simplify right side
    144,409.76x = 19,060,240,019.88
  5. Step 5: Solve for x
    x = 19,060,240,019.88/144,409.76
  6. Step 6: Final answer
    x = 131,987.20

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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.