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Finding the Fourth Proportional to 144,382.88, 216,549.48 and 39,210.32

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Solution

The fourth proportional to 144,382.88, 216,549.48 and 39,210.32 is: 58,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,382.88 : 216,549.48 = 39,210.32 : x
  2. Step 2: Convert to fraction form
    144,382.88/216,549.48 = 39,210.32/x
  3. Step 3: Cross multiply
    144,382.88x = 216,549.48 × 39,210.32
  4. Step 4: Simplify right side
    144,382.88x = 8,490,974,406.63
  5. Step 5: Solve for x
    x = 8,490,974,406.63/144,382.88
  6. Step 6: Final answer
    x = 58,808.73

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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.