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Finding the Fourth Proportional to 144,590.99, 216,880.10 and 39,409.95

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Solution

The fourth proportional to 144,590.99, 216,880.10 and 39,409.95 is: 59,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,590.99 : 216,880.10 = 39,409.95 : x
  2. Step 2: Convert to fraction form
    144,590.99/216,880.10 = 39,409.95/x
  3. Step 3: Cross multiply
    144,590.99x = 216,880.10 × 39,409.95
  4. Step 4: Simplify right side
    144,590.99x = 8,547,234,661.03
  5. Step 5: Solve for x
    x = 8,547,234,661.03/144,590.99
  6. Step 6: Final answer
    x = 59,113.19

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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.